Home / 5,389.62-7,437.68-3,031.76

Finding the Fourth Proportional to 5,389.62, 7,437.68 and 3,031.76

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Solution

The fourth proportional to 5,389.62, 7,437.68 and 3,031.76 is: 4,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.62 : 7,437.68 = 3,031.76 : x
  2. Step 2: Convert to fraction form
    5,389.62/7,437.68 = 3,031.76/x
  3. Step 3: Cross multiply
    5,389.62x = 7,437.68 × 3,031.76
  4. Step 4: Simplify right side
    5,389.62x = 22,549,208.37
  5. Step 5: Solve for x
    x = 22,549,208.37/5,389.62
  6. Step 6: Final answer
    x = 4,183.82

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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.