Home / 5,389.28-7,437.52-3,031.28

Finding the Fourth Proportional to 5,389.28, 7,437.52 and 3,031.28

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Solution

The fourth proportional to 5,389.28, 7,437.52 and 3,031.28 is: 4,183.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.28 : 7,437.52 = 3,031.28 : x
  2. Step 2: Convert to fraction form
    5,389.28/7,437.52 = 3,031.28/x
  3. Step 3: Cross multiply
    5,389.28x = 7,437.52 × 3,031.28
  4. Step 4: Simplify right side
    5,389.28x = 22,545,205.63
  5. Step 5: Solve for x
    x = 22,545,205.63/5,389.28
  6. Step 6: Final answer
    x = 4,183.34

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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.