Home / 5,389.74-7,436.61-3,031.02

Finding the Fourth Proportional to 5,389.74, 7,436.61 and 3,031.02

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Solution

The fourth proportional to 5,389.74, 7,436.61 and 3,031.02 is: 4,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.74 : 7,436.61 = 3,031.02 : x
  2. Step 2: Convert to fraction form
    5,389.74/7,436.61 = 3,031.02/x
  3. Step 3: Cross multiply
    5,389.74x = 7,436.61 × 3,031.02
  4. Step 4: Simplify right side
    5,389.74x = 22,540,513.64
  5. Step 5: Solve for x
    x = 22,540,513.64/5,389.74
  6. Step 6: Final answer
    x = 4,182.12

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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.