Home / 3,909.58-5,862.05-1,570.69

Finding the Fourth Proportional to 3,909.58, 5,862.05 and 1,570.69

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Solution

The fourth proportional to 3,909.58, 5,862.05 and 1,570.69 is: 2,355.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.58 : 5,862.05 = 1,570.69 : x
  2. Step 2: Convert to fraction form
    3,909.58/5,862.05 = 1,570.69/x
  3. Step 3: Cross multiply
    3,909.58x = 5,862.05 × 1,570.69
  4. Step 4: Simplify right side
    3,909.58x = 9,207,468.68
  5. Step 5: Solve for x
    x = 9,207,468.68/3,909.58
  6. Step 6: Final answer
    x = 2,355.11

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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.