Home / 5,440.69-7,508.06-3,082.78

Finding the Fourth Proportional to 5,440.69, 7,508.06 and 3,082.78

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Solution

The fourth proportional to 5,440.69, 7,508.06 and 3,082.78 is: 4,254.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.69 : 7,508.06 = 3,082.78 : x
  2. Step 2: Convert to fraction form
    5,440.69/7,508.06 = 3,082.78/x
  3. Step 3: Cross multiply
    5,440.69x = 7,508.06 × 3,082.78
  4. Step 4: Simplify right side
    5,440.69x = 23,145,681.79
  5. Step 5: Solve for x
    x = 23,145,681.79/5,440.69
  6. Step 6: Final answer
    x = 4,254.18

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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.