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Finding the Fourth Proportional to 2,390.07, 3,585.54 and 746.61

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Solution

The fourth proportional to 2,390.07, 3,585.54 and 746.61 is: 1,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.07 : 3,585.54 = 746.61 : x
  2. Step 2: Convert to fraction form
    2,390.07/3,585.54 = 746.61/x
  3. Step 3: Cross multiply
    2,390.07x = 3,585.54 × 746.61
  4. Step 4: Simplify right side
    2,390.07x = 2,677,000.02
  5. Step 5: Solve for x
    x = 2,677,000.02/2,390.07
  6. Step 6: Final answer
    x = 1,120.05

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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.