Home / 3,909.15-5,862.58-1,568.40

Finding the Fourth Proportional to 3,909.15, 5,862.58 and 1,568.40

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Solution

The fourth proportional to 3,909.15, 5,862.58 and 1,568.40 is: 2,352.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.15 : 5,862.58 = 1,568.40 : x
  2. Step 2: Convert to fraction form
    3,909.15/5,862.58 = 1,568.40/x
  3. Step 3: Cross multiply
    3,909.15x = 5,862.58 × 1,568.40
  4. Step 4: Simplify right side
    3,909.15x = 9,194,870.47
  5. Step 5: Solve for x
    x = 9,194,870.47/3,909.15
  6. Step 6: Final answer
    x = 2,352.14

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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.