Home / 2,528.66-3,489.78-1,534.20

Finding the Fourth Proportional to 2,528.66, 3,489.78 and 1,534.20

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Solution

The fourth proportional to 2,528.66, 3,489.78 and 1,534.20 is: 2,117.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.66 : 3,489.78 = 1,534.20 : x
  2. Step 2: Convert to fraction form
    2,528.66/3,489.78 = 1,534.20/x
  3. Step 3: Cross multiply
    2,528.66x = 3,489.78 × 1,534.20
  4. Step 4: Simplify right side
    2,528.66x = 5,354,020.48
  5. Step 5: Solve for x
    x = 5,354,020.48/2,528.66
  6. Step 6: Final answer
    x = 2,117.34

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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.