Home / 3,389.40-5,082.48-1,440.90

Finding the Fourth Proportional to 3,389.40, 5,082.48 and 1,440.90

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Solution

The fourth proportional to 3,389.40, 5,082.48 and 1,440.90 is: 2,160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.40 : 5,082.48 = 1,440.90 : x
  2. Step 2: Convert to fraction form
    3,389.40/5,082.48 = 1,440.90/x
  3. Step 3: Cross multiply
    3,389.40x = 5,082.48 × 1,440.90
  4. Step 4: Simplify right side
    3,389.40x = 7,323,345.43
  5. Step 5: Solve for x
    x = 7,323,345.43/3,389.40
  6. Step 6: Final answer
    x = 2,160.66

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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.