Home / 5,389.71-7,437.48-3,031.70

Finding the Fourth Proportional to 5,389.71, 7,437.48 and 3,031.70

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Solution

The fourth proportional to 5,389.71, 7,437.48 and 3,031.70 is: 4,183.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.71 : 7,437.48 = 3,031.70 : x
  2. Step 2: Convert to fraction form
    5,389.71/7,437.48 = 3,031.70/x
  3. Step 3: Cross multiply
    5,389.71x = 7,437.48 × 3,031.70
  4. Step 4: Simplify right side
    5,389.71x = 22,548,170.93
  5. Step 5: Solve for x
    x = 22,548,170.93/5,389.71
  6. Step 6: Final answer
    x = 4,183.56

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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.