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Finding the Fourth Proportional to 2,502.88, 3,455.36 and 1,508.40

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Solution

The fourth proportional to 2,502.88, 3,455.36 and 1,508.40 is: 2,082.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,502.88 : 3,455.36 = 1,508.40 : x
  2. Step 2: Convert to fraction form
    2,502.88/3,455.36 = 1,508.40/x
  3. Step 3: Cross multiply
    2,502.88x = 3,455.36 × 1,508.40
  4. Step 4: Simplify right side
    2,502.88x = 5,212,065.02
  5. Step 5: Solve for x
    x = 5,212,065.02/2,502.88
  6. Step 6: Final answer
    x = 2,082.43

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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.