Home / 4,151.19-6,237.55-3,120.90

Finding the Fourth Proportional to 4,151.19, 6,237.55 and 3,120.90

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Solution

The fourth proportional to 4,151.19, 6,237.55 and 3,120.90 is: 4,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.19 : 6,237.55 = 3,120.90 : x
  2. Step 2: Convert to fraction form
    4,151.19/6,237.55 = 3,120.90/x
  3. Step 3: Cross multiply
    4,151.19x = 6,237.55 × 3,120.90
  4. Step 4: Simplify right side
    4,151.19x = 19,466,794.16
  5. Step 5: Solve for x
    x = 19,466,794.16/4,151.19
  6. Step 6: Final answer
    x = 4,689.45

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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.