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Finding the Fourth Proportional to 2,471.90, 3,690.23 and 2,385.41

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Solution

The fourth proportional to 2,471.90, 3,690.23 and 2,385.41 is: 3,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,471.90 : 3,690.23 = 2,385.41 : x
  2. Step 2: Convert to fraction form
    2,471.90/3,690.23 = 2,385.41/x
  3. Step 3: Cross multiply
    2,471.90x = 3,690.23 × 2,385.41
  4. Step 4: Simplify right side
    2,471.90x = 8,802,681.17
  5. Step 5: Solve for x
    x = 8,802,681.17/2,471.90
  6. Step 6: Final answer
    x = 3,561.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.