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Finding the Fourth Proportional to 2,545.52, 3,508.06 and 1,985.10

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Solution

The fourth proportional to 2,545.52, 3,508.06 and 1,985.10 is: 2,735.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.52 : 3,508.06 = 1,985.10 : x
  2. Step 2: Convert to fraction form
    2,545.52/3,508.06 = 1,985.10/x
  3. Step 3: Cross multiply
    2,545.52x = 3,508.06 × 1,985.10
  4. Step 4: Simplify right side
    2,545.52x = 6,963,844.94
  5. Step 5: Solve for x
    x = 6,963,844.94/2,545.52
  6. Step 6: Final answer
    x = 2,735.73

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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.