Home / 7,335.20-10,122.64-4,191.84

Finding the Fourth Proportional to 7,335.20, 10,122.64 and 4,191.84

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Solution

The fourth proportional to 7,335.20, 10,122.64 and 4,191.84 is: 5,784.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,335.20 : 10,122.64 = 4,191.84 : x
  2. Step 2: Convert to fraction form
    7,335.20/10,122.64 = 4,191.84/x
  3. Step 3: Cross multiply
    7,335.20x = 10,122.64 × 4,191.84
  4. Step 4: Simplify right side
    7,335.20x = 42,432,487.26
  5. Step 5: Solve for x
    x = 42,432,487.26/7,335.20
  6. Step 6: Final answer
    x = 5,784.78

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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.