Home / 5,389.31-7,437.16-3,031.45

Finding the Fourth Proportional to 5,389.31, 7,437.16 and 3,031.45

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Solution

The fourth proportional to 5,389.31, 7,437.16 and 3,031.45 is: 4,183.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.31 : 7,437.16 = 3,031.45 : x
  2. Step 2: Convert to fraction form
    5,389.31/7,437.16 = 3,031.45/x
  3. Step 3: Cross multiply
    5,389.31x = 7,437.16 × 3,031.45
  4. Step 4: Simplify right side
    5,389.31x = 22,545,326.34
  5. Step 5: Solve for x
    x = 22,545,326.34/5,389.31
  6. Step 6: Final answer
    x = 4,183.35

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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.