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Finding the Fourth Proportional to 1,775.68, 2,663.52 and 477.16

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Solution

The fourth proportional to 1,775.68, 2,663.52 and 477.16 is: 715.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.68 : 2,663.52 = 477.16 : x
  2. Step 2: Convert to fraction form
    1,775.68/2,663.52 = 477.16/x
  3. Step 3: Cross multiply
    1,775.68x = 2,663.52 × 477.16
  4. Step 4: Simplify right side
    1,775.68x = 1,270,925.20
  5. Step 5: Solve for x
    x = 1,270,925.20/1,775.68
  6. Step 6: Final answer
    x = 715.74

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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.