Home / 3,440.17-5,155.19-1,538.18

Finding the Fourth Proportional to 3,440.17, 5,155.19 and 1,538.18

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Solution

The fourth proportional to 3,440.17, 5,155.19 and 1,538.18 is: 2,305.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.17 : 5,155.19 = 1,538.18 : x
  2. Step 2: Convert to fraction form
    3,440.17/5,155.19 = 1,538.18/x
  3. Step 3: Cross multiply
    3,440.17x = 5,155.19 × 1,538.18
  4. Step 4: Simplify right side
    3,440.17x = 7,929,625.65
  5. Step 5: Solve for x
    x = 7,929,625.65/3,440.17
  6. Step 6: Final answer
    x = 2,305.01

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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.