Home / 5,178.24-7,767.04-2,100.16

Finding the Fourth Proportional to 5,178.24, 7,767.04 and 2,100.16

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Solution

The fourth proportional to 5,178.24, 7,767.04 and 2,100.16 is: 3,150.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.24 : 7,767.04 = 2,100.16 : x
  2. Step 2: Convert to fraction form
    5,178.24/7,767.04 = 2,100.16/x
  3. Step 3: Cross multiply
    5,178.24x = 7,767.04 × 2,100.16
  4. Step 4: Simplify right side
    5,178.24x = 16,312,026.73
  5. Step 5: Solve for x
    x = 16,312,026.73/5,178.24
  6. Step 6: Final answer
    x = 3,150.11

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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.