Home / 5,371.02-7,412.40-3,013.20

Finding the Fourth Proportional to 5,371.02, 7,412.40 and 3,013.20

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Solution

The fourth proportional to 5,371.02, 7,412.40 and 3,013.20 is: 4,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.02 : 7,412.40 = 3,013.20 : x
  2. Step 2: Convert to fraction form
    5,371.02/7,412.40 = 3,013.20/x
  3. Step 3: Cross multiply
    5,371.02x = 7,412.40 × 3,013.20
  4. Step 4: Simplify right side
    5,371.02x = 22,335,043.68
  5. Step 5: Solve for x
    x = 22,335,043.68/5,371.02
  6. Step 6: Final answer
    x = 4,158.44

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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.