Home / 5,168.10-7,131.95-2,810.24

Finding the Fourth Proportional to 5,168.10, 7,131.95 and 2,810.24

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Solution

The fourth proportional to 5,168.10, 7,131.95 and 2,810.24 is: 3,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.10 : 7,131.95 = 2,810.24 : x
  2. Step 2: Convert to fraction form
    5,168.10/7,131.95 = 2,810.24/x
  3. Step 3: Cross multiply
    5,168.10x = 7,131.95 × 2,810.24
  4. Step 4: Simplify right side
    5,168.10x = 20,042,478.74
  5. Step 5: Solve for x
    x = 20,042,478.74/5,168.10
  6. Step 6: Final answer
    x = 3,878.11

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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.