Home / 5,389.71-7,437.72-3,031.85

Finding the Fourth Proportional to 5,389.71, 7,437.72 and 3,031.85

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Solution

The fourth proportional to 5,389.71, 7,437.72 and 3,031.85 is: 4,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.71 : 7,437.72 = 3,031.85 : x
  2. Step 2: Convert to fraction form
    5,389.71/7,437.72 = 3,031.85/x
  3. Step 3: Cross multiply
    5,389.71x = 7,437.72 × 3,031.85
  4. Step 4: Simplify right side
    5,389.71x = 22,550,014.19
  5. Step 5: Solve for x
    x = 22,550,014.19/5,389.71
  6. Step 6: Final answer
    x = 4,183.90

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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.