Home / 2,686.52-4,030.42-1,125.64

Finding the Fourth Proportional to 2,686.52, 4,030.42 and 1,125.64

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Solution

The fourth proportional to 2,686.52, 4,030.42 and 1,125.64 is: 1,688.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.52 : 4,030.42 = 1,125.64 : x
  2. Step 2: Convert to fraction form
    2,686.52/4,030.42 = 1,125.64/x
  3. Step 3: Cross multiply
    2,686.52x = 4,030.42 × 1,125.64
  4. Step 4: Simplify right side
    2,686.52x = 4,536,801.97
  5. Step 5: Solve for x
    x = 4,536,801.97/2,686.52
  6. Step 6: Final answer
    x = 1,688.73

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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.