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Finding the Fourth Proportional to 1,772.17, 2,658.29 and 473.63

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Solution

The fourth proportional to 1,772.17, 2,658.29 and 473.63 is: 710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.17 : 2,658.29 = 473.63 : x
  2. Step 2: Convert to fraction form
    1,772.17/2,658.29 = 473.63/x
  3. Step 3: Cross multiply
    1,772.17x = 2,658.29 × 473.63
  4. Step 4: Simplify right side
    1,772.17x = 1,259,030.23
  5. Step 5: Solve for x
    x = 1,259,030.23/1,772.17
  6. Step 6: Final answer
    x = 710.45

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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.