Home / 3,000.65-4,140.77-1,674.36

Finding the Fourth Proportional to 3,000.65, 4,140.77 and 1,674.36

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Solution

The fourth proportional to 3,000.65, 4,140.77 and 1,674.36 is: 2,310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.65 : 4,140.77 = 1,674.36 : x
  2. Step 2: Convert to fraction form
    3,000.65/4,140.77 = 1,674.36/x
  3. Step 3: Cross multiply
    3,000.65x = 4,140.77 × 1,674.36
  4. Step 4: Simplify right side
    3,000.65x = 6,933,131.29
  5. Step 5: Solve for x
    x = 6,933,131.29/3,000.65
  6. Step 6: Final answer
    x = 2,310.55

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.