Home / 5,389.85-7,437.91-3,031.99

Finding the Fourth Proportional to 5,389.85, 7,437.91 and 3,031.99

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Solution

The fourth proportional to 5,389.85, 7,437.91 and 3,031.99 is: 4,184.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.85 : 7,437.91 = 3,031.99 : x
  2. Step 2: Convert to fraction form
    5,389.85/7,437.91 = 3,031.99/x
  3. Step 3: Cross multiply
    5,389.85x = 7,437.91 × 3,031.99
  4. Step 4: Simplify right side
    5,389.85x = 22,551,631.55
  5. Step 5: Solve for x
    x = 22,551,631.55/5,389.85
  6. Step 6: Final answer
    x = 4,184.10

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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.