Home / 5,713.02-7,885.30-3,720.12

Finding the Fourth Proportional to 5,713.02, 7,885.30 and 3,720.12

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Solution

The fourth proportional to 5,713.02, 7,885.30 and 3,720.12 is: 5,134.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,713.02 : 7,885.30 = 3,720.12 : x
  2. Step 2: Convert to fraction form
    5,713.02/7,885.30 = 3,720.12/x
  3. Step 3: Cross multiply
    5,713.02x = 7,885.30 × 3,720.12
  4. Step 4: Simplify right side
    5,713.02x = 29,334,262.24
  5. Step 5: Solve for x
    x = 29,334,262.24/5,713.02
  6. Step 6: Final answer
    x = 5,134.63

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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.