Home / 1,343.17-2,013.54-477.28

Finding the Fourth Proportional to 1,343.17, 2,013.54 and 477.28

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Solution

The fourth proportional to 1,343.17, 2,013.54 and 477.28 is: 715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.17 : 2,013.54 = 477.28 : x
  2. Step 2: Convert to fraction form
    1,343.17/2,013.54 = 477.28/x
  3. Step 3: Cross multiply
    1,343.17x = 2,013.54 × 477.28
  4. Step 4: Simplify right side
    1,343.17x = 961,022.37
  5. Step 5: Solve for x
    x = 961,022.37/1,343.17
  6. Step 6: Final answer
    x = 715.49

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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.