Home / 7,722.90-10,657.50-4,186.14

Finding the Fourth Proportional to 7,722.90, 10,657.50 and 4,186.14

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Solution

The fourth proportional to 7,722.90, 10,657.50 and 4,186.14 is: 5,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.90 : 10,657.50 = 4,186.14 : x
  2. Step 2: Convert to fraction form
    7,722.90/10,657.50 = 4,186.14/x
  3. Step 3: Cross multiply
    7,722.90x = 10,657.50 × 4,186.14
  4. Step 4: Simplify right side
    7,722.90x = 44,613,787.05
  5. Step 5: Solve for x
    x = 44,613,787.05/7,722.90
  6. Step 6: Final answer
    x = 5,776.82

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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.