Home / 6,758.15-10,140.85-2,812.13

Finding the Fourth Proportional to 6,758.15, 10,140.85 and 2,812.13

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Solution

The fourth proportional to 6,758.15, 10,140.85 and 2,812.13 is: 4,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,758.15 : 10,140.85 = 2,812.13 : x
  2. Step 2: Convert to fraction form
    6,758.15/10,140.85 = 2,812.13/x
  3. Step 3: Cross multiply
    6,758.15x = 10,140.85 × 2,812.13
  4. Step 4: Simplify right side
    6,758.15x = 28,517,341.32
  5. Step 5: Solve for x
    x = 28,517,341.32/6,758.15
  6. Step 6: Final answer
    x = 4,219.70

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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.