Home / 1,497.47-2,246.51-631.79

Finding the Fourth Proportional to 1,497.47, 2,246.51 and 631.79

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Solution

The fourth proportional to 1,497.47, 2,246.51 and 631.79 is: 947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.47 : 2,246.51 = 631.79 : x
  2. Step 2: Convert to fraction form
    1,497.47/2,246.51 = 631.79/x
  3. Step 3: Cross multiply
    1,497.47x = 2,246.51 × 631.79
  4. Step 4: Simplify right side
    1,497.47x = 1,419,308.16
  5. Step 5: Solve for x
    x = 1,419,308.16/1,497.47
  6. Step 6: Final answer
    x = 947.81

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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.