Home / 5,873.28-8,103.84-3,985.20

Finding the Fourth Proportional to 5,873.28, 8,103.84 and 3,985.20

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Solution

The fourth proportional to 5,873.28, 8,103.84 and 3,985.20 is: 5,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,873.28 : 8,103.84 = 3,985.20 : x
  2. Step 2: Convert to fraction form
    5,873.28/8,103.84 = 3,985.20/x
  3. Step 3: Cross multiply
    5,873.28x = 8,103.84 × 3,985.20
  4. Step 4: Simplify right side
    5,873.28x = 32,295,423.17
  5. Step 5: Solve for x
    x = 32,295,423.17/5,873.28
  6. Step 6: Final answer
    x = 5,498.70

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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.