Home / 7,324.90-10,108.40-3,967.72

Finding the Fourth Proportional to 7,324.90, 10,108.40 and 3,967.72

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Solution

The fourth proportional to 7,324.90, 10,108.40 and 3,967.72 is: 5,475.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.90 : 10,108.40 = 3,967.72 : x
  2. Step 2: Convert to fraction form
    7,324.90/10,108.40 = 3,967.72/x
  3. Step 3: Cross multiply
    7,324.90x = 10,108.40 × 3,967.72
  4. Step 4: Simplify right side
    7,324.90x = 40,107,255.74
  5. Step 5: Solve for x
    x = 40,107,255.74/7,324.90
  6. Step 6: Final answer
    x = 5,475.47

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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.