Home / 3,438.76-5,158.15-1,246.77

Finding the Fourth Proportional to 3,438.76, 5,158.15 and 1,246.77

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Solution

The fourth proportional to 3,438.76, 5,158.15 and 1,246.77 is: 1,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.76 : 5,158.15 = 1,246.77 : x
  2. Step 2: Convert to fraction form
    3,438.76/5,158.15 = 1,246.77/x
  3. Step 3: Cross multiply
    3,438.76x = 5,158.15 × 1,246.77
  4. Step 4: Simplify right side
    3,438.76x = 6,431,026.68
  5. Step 5: Solve for x
    x = 6,431,026.68/3,438.76
  6. Step 6: Final answer
    x = 1,870.16

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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.