Home / 3,385.79-5,079.50-1,277.44

Finding the Fourth Proportional to 3,385.79, 5,079.50 and 1,277.44

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Solution

The fourth proportional to 3,385.79, 5,079.50 and 1,277.44 is: 1,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.79 : 5,079.50 = 1,277.44 : x
  2. Step 2: Convert to fraction form
    3,385.79/5,079.50 = 1,277.44/x
  3. Step 3: Cross multiply
    3,385.79x = 5,079.50 × 1,277.44
  4. Step 4: Simplify right side
    3,385.79x = 6,488,746.97
  5. Step 5: Solve for x
    x = 6,488,746.97/3,385.79
  6. Step 6: Final answer
    x = 1,916.47

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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.