Home / 2,913.38-4,020.58-1,671.62

Finding the Fourth Proportional to 2,913.38, 4,020.58 and 1,671.62

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Solution

The fourth proportional to 2,913.38, 4,020.58 and 1,671.62 is: 2,306.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.38 : 4,020.58 = 1,671.62 : x
  2. Step 2: Convert to fraction form
    2,913.38/4,020.58 = 1,671.62/x
  3. Step 3: Cross multiply
    2,913.38x = 4,020.58 × 1,671.62
  4. Step 4: Simplify right side
    2,913.38x = 6,720,881.94
  5. Step 5: Solve for x
    x = 6,720,881.94/2,913.38
  6. Step 6: Final answer
    x = 2,306.90

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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.