Home / 3,001.60-4,502.31-921.52

Finding the Fourth Proportional to 3,001.60, 4,502.31 and 921.52

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Solution

The fourth proportional to 3,001.60, 4,502.31 and 921.52 is: 1,382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.60 : 4,502.31 = 921.52 : x
  2. Step 2: Convert to fraction form
    3,001.60/4,502.31 = 921.52/x
  3. Step 3: Cross multiply
    3,001.60x = 4,502.31 × 921.52
  4. Step 4: Simplify right side
    3,001.60x = 4,148,968.71
  5. Step 5: Solve for x
    x = 4,148,968.71/3,001.60
  6. Step 6: Final answer
    x = 1,382.25

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1.5x scale

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.