Home / 3,720.16-5,133.02-2,147.34

Finding the Fourth Proportional to 3,720.16, 5,133.02 and 2,147.34

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Solution

The fourth proportional to 3,720.16, 5,133.02 and 2,147.34 is: 2,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.16 : 5,133.02 = 2,147.34 : x
  2. Step 2: Convert to fraction form
    3,720.16/5,133.02 = 2,147.34/x
  3. Step 3: Cross multiply
    3,720.16x = 5,133.02 × 2,147.34
  4. Step 4: Simplify right side
    3,720.16x = 11,022,359.76
  5. Step 5: Solve for x
    x = 11,022,359.76/3,720.16
  6. Step 6: Final answer
    x = 2,962.87

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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.