Home / 5,686.63-8,531.10-2,399.74

Finding the Fourth Proportional to 5,686.63, 8,531.10 and 2,399.74

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Solution

The fourth proportional to 5,686.63, 8,531.10 and 2,399.74 is: 3,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.63 : 8,531.10 = 2,399.74 : x
  2. Step 2: Convert to fraction form
    5,686.63/8,531.10 = 2,399.74/x
  3. Step 3: Cross multiply
    5,686.63x = 8,531.10 × 2,399.74
  4. Step 4: Simplify right side
    5,686.63x = 20,472,421.91
  5. Step 5: Solve for x
    x = 20,472,421.91/5,686.63
  6. Step 6: Final answer
    x = 3,600.10

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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.