Home / 1,624.43-2,439.08-931.88

Finding the Fourth Proportional to 1,624.43, 2,439.08 and 931.88

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Solution

The fourth proportional to 1,624.43, 2,439.08 and 931.88 is: 1,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.43 : 2,439.08 = 931.88 : x
  2. Step 2: Convert to fraction form
    1,624.43/2,439.08 = 931.88/x
  3. Step 3: Cross multiply
    1,624.43x = 2,439.08 × 931.88
  4. Step 4: Simplify right side
    1,624.43x = 2,272,929.87
  5. Step 5: Solve for x
    x = 2,272,929.87/1,624.43
  6. Step 6: Final answer
    x = 1,399.22

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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.