Home / 2,686.46-4,029.36-1,298.61

Finding the Fourth Proportional to 2,686.46, 4,029.36 and 1,298.61

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Solution

The fourth proportional to 2,686.46, 4,029.36 and 1,298.61 is: 1,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.46 : 4,029.36 = 1,298.61 : x
  2. Step 2: Convert to fraction form
    2,686.46/4,029.36 = 1,298.61/x
  3. Step 3: Cross multiply
    2,686.46x = 4,029.36 × 1,298.61
  4. Step 4: Simplify right side
    2,686.46x = 5,232,567.19
  5. Step 5: Solve for x
    x = 5,232,567.19/2,686.46
  6. Step 6: Final answer
    x = 1,947.76

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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.