Home / 4,659.20-6,990.02-1,539.68

Finding the Fourth Proportional to 4,659.20, 6,990.02 and 1,539.68

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Solution

The fourth proportional to 4,659.20, 6,990.02 and 1,539.68 is: 2,309.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,659.20 : 6,990.02 = 1,539.68 : x
  2. Step 2: Convert to fraction form
    4,659.20/6,990.02 = 1,539.68/x
  3. Step 3: Cross multiply
    4,659.20x = 6,990.02 × 1,539.68
  4. Step 4: Simplify right side
    4,659.20x = 10,762,393.99
  5. Step 5: Solve for x
    x = 10,762,393.99/4,659.20
  6. Step 6: Final answer
    x = 2,309.92

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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.