Home / 3,937.02-5,433.12-2,168.70

Finding the Fourth Proportional to 3,937.02, 5,433.12 and 2,168.70

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Solution

The fourth proportional to 3,937.02, 5,433.12 and 2,168.70 is: 2,992.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.02 : 5,433.12 = 2,168.70 : x
  2. Step 2: Convert to fraction form
    3,937.02/5,433.12 = 2,168.70/x
  3. Step 3: Cross multiply
    3,937.02x = 5,433.12 × 2,168.70
  4. Step 4: Simplify right side
    3,937.02x = 11,782,807.34
  5. Step 5: Solve for x
    x = 11,782,807.34/3,937.02
  6. Step 6: Final answer
    x = 2,992.82

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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.