Home / 5,389.48-7,437.84-3,031.78

Finding the Fourth Proportional to 5,389.48, 7,437.84 and 3,031.78

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Solution

The fourth proportional to 5,389.48, 7,437.84 and 3,031.78 is: 4,184.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.48 : 7,437.84 = 3,031.78 : x
  2. Step 2: Convert to fraction form
    5,389.48/7,437.84 = 3,031.78/x
  3. Step 3: Cross multiply
    5,389.48x = 7,437.84 × 3,031.78
  4. Step 4: Simplify right side
    5,389.48x = 22,549,894.56
  5. Step 5: Solve for x
    x = 22,549,894.56/5,389.48
  6. Step 6: Final answer
    x = 4,184.06

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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.