Home / 4,876.24-7,312.08-2,102.80

Finding the Fourth Proportional to 4,876.24, 7,312.08 and 2,102.80

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Solution

The fourth proportional to 4,876.24, 7,312.08 and 2,102.80 is: 3,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.24 : 7,312.08 = 2,102.80 : x
  2. Step 2: Convert to fraction form
    4,876.24/7,312.08 = 2,102.80/x
  3. Step 3: Cross multiply
    4,876.24x = 7,312.08 × 2,102.80
  4. Step 4: Simplify right side
    4,876.24x = 15,375,841.82
  5. Step 5: Solve for x
    x = 15,375,841.82/4,876.24
  6. Step 6: Final answer
    x = 3,153.22

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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.