Home / 5,389.80-7,436.94-3,031.08

Finding the Fourth Proportional to 5,389.80, 7,436.94 and 3,031.08

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Solution

The fourth proportional to 5,389.80, 7,436.94 and 3,031.08 is: 4,182.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.80 : 7,436.94 = 3,031.08 : x
  2. Step 2: Convert to fraction form
    5,389.80/7,436.94 = 3,031.08/x
  3. Step 3: Cross multiply
    5,389.80x = 7,436.94 × 3,031.08
  4. Step 4: Simplify right side
    5,389.80x = 22,541,960.10
  5. Step 5: Solve for x
    x = 22,541,960.10/5,389.80
  6. Step 6: Final answer
    x = 4,182.34

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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.