Home / 1,631.36-2,447.47-706.71

Finding the Fourth Proportional to 1,631.36, 2,447.47 and 706.71

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Solution

The fourth proportional to 1,631.36, 2,447.47 and 706.71 is: 1,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.36 : 2,447.47 = 706.71 : x
  2. Step 2: Convert to fraction form
    1,631.36/2,447.47 = 706.71/x
  3. Step 3: Cross multiply
    1,631.36x = 2,447.47 × 706.71
  4. Step 4: Simplify right side
    1,631.36x = 1,729,636.96
  5. Step 5: Solve for x
    x = 1,729,636.96/1,631.36
  6. Step 6: Final answer
    x = 1,060.24

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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.