Home / 2,560.02-3,839.21-999.65

Finding the Fourth Proportional to 2,560.02, 3,839.21 and 999.65

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Solution

The fourth proportional to 2,560.02, 3,839.21 and 999.65 is: 1,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.02 : 3,839.21 = 999.65 : x
  2. Step 2: Convert to fraction form
    2,560.02/3,839.21 = 999.65/x
  3. Step 3: Cross multiply
    2,560.02x = 3,839.21 × 999.65
  4. Step 4: Simplify right side
    2,560.02x = 3,837,849.58
  5. Step 5: Solve for x
    x = 3,837,849.58/2,560.02
  6. Step 6: Final answer
    x = 1,499.15

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.