Home / 3,082.80-4,622.76-1,440.12

Finding the Fourth Proportional to 3,082.80, 4,622.76 and 1,440.12

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Solution

The fourth proportional to 3,082.80, 4,622.76 and 1,440.12 is: 2,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.80 : 4,622.76 = 1,440.12 : x
  2. Step 2: Convert to fraction form
    3,082.80/4,622.76 = 1,440.12/x
  3. Step 3: Cross multiply
    3,082.80x = 4,622.76 × 1,440.12
  4. Step 4: Simplify right side
    3,082.80x = 6,657,329.13
  5. Step 5: Solve for x
    x = 6,657,329.13/3,082.80
  6. Step 6: Final answer
    x = 2,159.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.