Home / 5,389.65-7,437.70-3,031.79

Finding the Fourth Proportional to 5,389.65, 7,437.70 and 3,031.79

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Solution

The fourth proportional to 5,389.65, 7,437.70 and 3,031.79 is: 4,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.65 : 7,437.70 = 3,031.79 : x
  2. Step 2: Convert to fraction form
    5,389.65/7,437.70 = 3,031.79/x
  3. Step 3: Cross multiply
    5,389.65x = 7,437.70 × 3,031.79
  4. Step 4: Simplify right side
    5,389.65x = 22,549,499.72
  5. Step 5: Solve for x
    x = 22,549,499.72/5,389.65
  6. Step 6: Final answer
    x = 4,183.85

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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.