Home / 4,990.96-6,888.16-4,150.21

Finding the Fourth Proportional to 4,990.96, 6,888.16 and 4,150.21

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Solution

The fourth proportional to 4,990.96, 6,888.16 and 4,150.21 is: 5,727.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.96 : 6,888.16 = 4,150.21 : x
  2. Step 2: Convert to fraction form
    4,990.96/6,888.16 = 4,150.21/x
  3. Step 3: Cross multiply
    4,990.96x = 6,888.16 × 4,150.21
  4. Step 4: Simplify right side
    4,990.96x = 28,587,289.76
  5. Step 5: Solve for x
    x = 28,587,289.76/4,990.96
  6. Step 6: Final answer
    x = 5,727.82

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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.