Home / 9,160.86-13,742.30-2,919.42

Finding the Fourth Proportional to 9,160.86, 13,742.30 and 2,919.42

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Solution

The fourth proportional to 9,160.86, 13,742.30 and 2,919.42 is: 4,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160.86 : 13,742.30 = 2,919.42 : x
  2. Step 2: Convert to fraction form
    9,160.86/13,742.30 = 2,919.42/x
  3. Step 3: Cross multiply
    9,160.86x = 13,742.30 × 2,919.42
  4. Step 4: Simplify right side
    9,160.86x = 40,119,545.47
  5. Step 5: Solve for x
    x = 40,119,545.47/9,160.86
  6. Step 6: Final answer
    x = 4,379.45

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1.5x scale

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.