Home / 7,223.98-9,967.40-4,239.66

Finding the Fourth Proportional to 7,223.98, 9,967.40 and 4,239.66

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Solution

The fourth proportional to 7,223.98, 9,967.40 and 4,239.66 is: 5,849.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.98 : 9,967.40 = 4,239.66 : x
  2. Step 2: Convert to fraction form
    7,223.98/9,967.40 = 4,239.66/x
  3. Step 3: Cross multiply
    7,223.98x = 9,967.40 × 4,239.66
  4. Step 4: Simplify right side
    7,223.98x = 42,258,387.08
  5. Step 5: Solve for x
    x = 42,258,387.08/7,223.98
  6. Step 6: Final answer
    x = 5,849.74

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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.