Home / 2,783.33-4,153.87-2,670.30

Finding the Fourth Proportional to 2,783.33, 4,153.87 and 2,670.30

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Solution

The fourth proportional to 2,783.33, 4,153.87 and 2,670.30 is: 3,985.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.33 : 4,153.87 = 2,670.30 : x
  2. Step 2: Convert to fraction form
    2,783.33/4,153.87 = 2,670.30/x
  3. Step 3: Cross multiply
    2,783.33x = 4,153.87 × 2,670.30
  4. Step 4: Simplify right side
    2,783.33x = 11,092,065.71
  5. Step 5: Solve for x
    x = 11,092,065.71/2,783.33
  6. Step 6: Final answer
    x = 3,985.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.