Home / 3,082.02-4,254.78-2,139.46

Finding the Fourth Proportional to 3,082.02, 4,254.78 and 2,139.46

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Solution

The fourth proportional to 3,082.02, 4,254.78 and 2,139.46 is: 2,953.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.02 : 4,254.78 = 2,139.46 : x
  2. Step 2: Convert to fraction form
    3,082.02/4,254.78 = 2,139.46/x
  3. Step 3: Cross multiply
    3,082.02x = 4,254.78 × 2,139.46
  4. Step 4: Simplify right side
    3,082.02x = 9,102,931.62
  5. Step 5: Solve for x
    x = 9,102,931.62/3,082.02
  6. Step 6: Final answer
    x = 2,953.56

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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.