Home / 2,528.28-3,490.68-1,585.44

Finding the Fourth Proportional to 2,528.28, 3,490.68 and 1,585.44

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Solution

The fourth proportional to 2,528.28, 3,490.68 and 1,585.44 is: 2,188.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.28 : 3,490.68 = 1,585.44 : x
  2. Step 2: Convert to fraction form
    2,528.28/3,490.68 = 1,585.44/x
  3. Step 3: Cross multiply
    2,528.28x = 3,490.68 × 1,585.44
  4. Step 4: Simplify right side
    2,528.28x = 5,534,263.70
  5. Step 5: Solve for x
    x = 5,534,263.70/2,528.28
  6. Step 6: Final answer
    x = 2,188.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.