Home / 4,091.20-6,139.20-1,494.40

Finding the Fourth Proportional to 4,091.20, 6,139.20 and 1,494.40

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Solution

The fourth proportional to 4,091.20, 6,139.20 and 1,494.40 is: 2,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.20 : 6,139.20 = 1,494.40 : x
  2. Step 2: Convert to fraction form
    4,091.20/6,139.20 = 1,494.40/x
  3. Step 3: Cross multiply
    4,091.20x = 6,139.20 × 1,494.40
  4. Step 4: Simplify right side
    4,091.20x = 9,174,420.48
  5. Step 5: Solve for x
    x = 9,174,420.48/4,091.20
  6. Step 6: Final answer
    x = 2,242.48

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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.