Home / 3,118.88-4,677.82-1,038.92

Finding the Fourth Proportional to 3,118.88, 4,677.82 and 1,038.92

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Solution

The fourth proportional to 3,118.88, 4,677.82 and 1,038.92 is: 1,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.88 : 4,677.82 = 1,038.92 : x
  2. Step 2: Convert to fraction form
    3,118.88/4,677.82 = 1,038.92/x
  3. Step 3: Cross multiply
    3,118.88x = 4,677.82 × 1,038.92
  4. Step 4: Simplify right side
    3,118.88x = 4,859,854.77
  5. Step 5: Solve for x
    x = 4,859,854.77/3,118.88
  6. Step 6: Final answer
    x = 1,558.20

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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.