Home / 2,528.08-3,789.96-990.16

Finding the Fourth Proportional to 2,528.08, 3,789.96 and 990.16

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Solution

The fourth proportional to 2,528.08, 3,789.96 and 990.16 is: 1,484.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.08 : 3,789.96 = 990.16 : x
  2. Step 2: Convert to fraction form
    2,528.08/3,789.96 = 990.16/x
  3. Step 3: Cross multiply
    2,528.08x = 3,789.96 × 990.16
  4. Step 4: Simplify right side
    2,528.08x = 3,752,666.79
  5. Step 5: Solve for x
    x = 3,752,666.79/2,528.08
  6. Step 6: Final answer
    x = 1,484.39

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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.