Home / 2,874.10-4,311.15-2,547.70

Finding the Fourth Proportional to 2,874.10, 4,311.15 and 2,547.70

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Solution

The fourth proportional to 2,874.10, 4,311.15 and 2,547.70 is: 3,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.10 : 4,311.15 = 2,547.70 : x
  2. Step 2: Convert to fraction form
    2,874.10/4,311.15 = 2,547.70/x
  3. Step 3: Cross multiply
    2,874.10x = 4,311.15 × 2,547.70
  4. Step 4: Simplify right side
    2,874.10x = 10,983,516.86
  5. Step 5: Solve for x
    x = 10,983,516.86/2,874.10
  6. Step 6: Final answer
    x = 3,821.55

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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.