Home / 2,622.61-3,612.68-2,123.85

Finding the Fourth Proportional to 2,622.61, 3,612.68 and 2,123.85

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Solution

The fourth proportional to 2,622.61, 3,612.68 and 2,123.85 is: 2,925.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.61 : 3,612.68 = 2,123.85 : x
  2. Step 2: Convert to fraction form
    2,622.61/3,612.68 = 2,123.85/x
  3. Step 3: Cross multiply
    2,622.61x = 3,612.68 × 2,123.85
  4. Step 4: Simplify right side
    2,622.61x = 7,672,790.42
  5. Step 5: Solve for x
    x = 7,672,790.42/2,622.61
  6. Step 6: Final answer
    x = 2,925.64

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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.