Home / 6,878.20-10,312.75-2,495.70

Finding the Fourth Proportional to 6,878.20, 10,312.75 and 2,495.70

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Solution

The fourth proportional to 6,878.20, 10,312.75 and 2,495.70 is: 3,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.20 : 10,312.75 = 2,495.70 : x
  2. Step 2: Convert to fraction form
    6,878.20/10,312.75 = 2,495.70/x
  3. Step 3: Cross multiply
    6,878.20x = 10,312.75 × 2,495.70
  4. Step 4: Simplify right side
    6,878.20x = 25,737,530.18
  5. Step 5: Solve for x
    x = 25,737,530.18/6,878.20
  6. Step 6: Final answer
    x = 3,741.90

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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.