Home / 4,981.10-6,874.17-2,991.74

Finding the Fourth Proportional to 4,981.10, 6,874.17 and 2,991.74

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Solution

The fourth proportional to 4,981.10, 6,874.17 and 2,991.74 is: 4,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.10 : 6,874.17 = 2,991.74 : x
  2. Step 2: Convert to fraction form
    4,981.10/6,874.17 = 2,991.74/x
  3. Step 3: Cross multiply
    4,981.10x = 6,874.17 × 2,991.74
  4. Step 4: Simplify right side
    4,981.10x = 20,565,683.77
  5. Step 5: Solve for x
    x = 20,565,683.77/4,981.10
  6. Step 6: Final answer
    x = 4,128.75

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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.