Home / 4,060.40-6,090.28-1,138.80

Finding the Fourth Proportional to 4,060.40, 6,090.28 and 1,138.80

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Solution

The fourth proportional to 4,060.40, 6,090.28 and 1,138.80 is: 1,708.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,060.40 : 6,090.28 = 1,138.80 : x
  2. Step 2: Convert to fraction form
    4,060.40/6,090.28 = 1,138.80/x
  3. Step 3: Cross multiply
    4,060.40x = 6,090.28 × 1,138.80
  4. Step 4: Simplify right side
    4,060.40x = 6,935,610.86
  5. Step 5: Solve for x
    x = 6,935,610.86/4,060.40
  6. Step 6: Final answer
    x = 1,708.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.