Home / 2,838.20-3,916.10-1,658.73

Finding the Fourth Proportional to 2,838.20, 3,916.10 and 1,658.73

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Solution

The fourth proportional to 2,838.20, 3,916.10 and 1,658.73 is: 2,288.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.20 : 3,916.10 = 1,658.73 : x
  2. Step 2: Convert to fraction form
    2,838.20/3,916.10 = 1,658.73/x
  3. Step 3: Cross multiply
    2,838.20x = 3,916.10 × 1,658.73
  4. Step 4: Simplify right side
    2,838.20x = 6,495,756.70
  5. Step 5: Solve for x
    x = 6,495,756.70/2,838.20
  6. Step 6: Final answer
    x = 2,288.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.