Home / 7,238.30-9,988.70-4,094.42

Finding the Fourth Proportional to 7,238.30, 9,988.70 and 4,094.42

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Solution

The fourth proportional to 7,238.30, 9,988.70 and 4,094.42 is: 5,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.30 : 9,988.70 = 4,094.42 : x
  2. Step 2: Convert to fraction form
    7,238.30/9,988.70 = 4,094.42/x
  3. Step 3: Cross multiply
    7,238.30x = 9,988.70 × 4,094.42
  4. Step 4: Simplify right side
    7,238.30x = 40,897,862.64
  5. Step 5: Solve for x
    x = 40,897,862.64/7,238.30
  6. Step 6: Final answer
    x = 5,650.21

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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.