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Finding the Fourth Proportional to 2,703.89, 3,731.28 and 1,508.91

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Solution

The fourth proportional to 2,703.89, 3,731.28 and 1,508.91 is: 2,082.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703.89 : 3,731.28 = 1,508.91 : x
  2. Step 2: Convert to fraction form
    2,703.89/3,731.28 = 1,508.91/x
  3. Step 3: Cross multiply
    2,703.89x = 3,731.28 × 1,508.91
  4. Step 4: Simplify right side
    2,703.89x = 5,630,165.70
  5. Step 5: Solve for x
    x = 5,630,165.70/2,703.89
  6. Step 6: Final answer
    x = 2,082.25

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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.