Home / 5,685.31-8,529.12-2,398.39

Finding the Fourth Proportional to 5,685.31, 8,529.12 and 2,398.39

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Solution

The fourth proportional to 5,685.31, 8,529.12 and 2,398.39 is: 3,598.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.31 : 8,529.12 = 2,398.39 : x
  2. Step 2: Convert to fraction form
    5,685.31/8,529.12 = 2,398.39/x
  3. Step 3: Cross multiply
    5,685.31x = 8,529.12 × 2,398.39
  4. Step 4: Simplify right side
    5,685.31x = 20,456,156.12
  5. Step 5: Solve for x
    x = 20,456,156.12/5,685.31
  6. Step 6: Final answer
    x = 3,598.07

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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.