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Finding the Fourth Proportional to 2,475.40, 3,705.90 and 2,403.40

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Solution

The fourth proportional to 2,475.40, 3,705.90 and 2,403.40 is: 3,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.40 : 3,705.90 = 2,403.40 : x
  2. Step 2: Convert to fraction form
    2,475.40/3,705.90 = 2,403.40/x
  3. Step 3: Cross multiply
    2,475.40x = 3,705.90 × 2,403.40
  4. Step 4: Simplify right side
    2,475.40x = 8,906,760.06
  5. Step 5: Solve for x
    x = 8,906,760.06/2,475.40
  6. Step 6: Final answer
    x = 3,598.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.