Home / 5,389.80-7,437.39-3,031.89

Finding the Fourth Proportional to 5,389.80, 7,437.39 and 3,031.89

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Solution

The fourth proportional to 5,389.80, 7,437.39 and 3,031.89 is: 4,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.80 : 7,437.39 = 3,031.89 : x
  2. Step 2: Convert to fraction form
    5,389.80/7,437.39 = 3,031.89/x
  3. Step 3: Cross multiply
    5,389.80x = 7,437.39 × 3,031.89
  4. Step 4: Simplify right side
    5,389.80x = 22,549,348.37
  5. Step 5: Solve for x
    x = 22,549,348.37/5,389.80
  6. Step 6: Final answer
    x = 4,183.71

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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.