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Finding the Fourth Proportional to 2,397.60, 3,599.74 and 1,904.31

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Solution

The fourth proportional to 2,397.60, 3,599.74 and 1,904.31 is: 2,859.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.60 : 3,599.74 = 1,904.31 : x
  2. Step 2: Convert to fraction form
    2,397.60/3,599.74 = 1,904.31/x
  3. Step 3: Cross multiply
    2,397.60x = 3,599.74 × 1,904.31
  4. Step 4: Simplify right side
    2,397.60x = 6,855,020.88
  5. Step 5: Solve for x
    x = 6,855,020.88/2,397.60
  6. Step 6: Final answer
    x = 2,859.12

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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.