Home / 4,747.17-6,551.79-2,978.13

Finding the Fourth Proportional to 4,747.17, 6,551.79 and 2,978.13

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Solution

The fourth proportional to 4,747.17, 6,551.79 and 2,978.13 is: 4,110.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.17 : 6,551.79 = 2,978.13 : x
  2. Step 2: Convert to fraction form
    4,747.17/6,551.79 = 2,978.13/x
  3. Step 3: Cross multiply
    4,747.17x = 6,551.79 × 2,978.13
  4. Step 4: Simplify right side
    4,747.17x = 19,512,082.35
  5. Step 5: Solve for x
    x = 19,512,082.35/4,747.17
  6. Step 6: Final answer
    x = 4,110.26

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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.