Home / 5,919.90-8,166.96-3,931.52

Finding the Fourth Proportional to 5,919.90, 8,166.96 and 3,931.52

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Solution

The fourth proportional to 5,919.90, 8,166.96 and 3,931.52 is: 5,423.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.90 : 8,166.96 = 3,931.52 : x
  2. Step 2: Convert to fraction form
    5,919.90/8,166.96 = 3,931.52/x
  3. Step 3: Cross multiply
    5,919.90x = 8,166.96 × 3,931.52
  4. Step 4: Simplify right side
    5,919.90x = 32,108,566.58
  5. Step 5: Solve for x
    x = 32,108,566.58/5,919.90
  6. Step 6: Final answer
    x = 5,423.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.