Home / 5,340.86-8,011.38-2,220.84

Finding the Fourth Proportional to 5,340.86, 8,011.38 and 2,220.84

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Solution

The fourth proportional to 5,340.86, 8,011.38 and 2,220.84 is: 3,331.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.86 : 8,011.38 = 2,220.84 : x
  2. Step 2: Convert to fraction form
    5,340.86/8,011.38 = 2,220.84/x
  3. Step 3: Cross multiply
    5,340.86x = 8,011.38 × 2,220.84
  4. Step 4: Simplify right side
    5,340.86x = 17,791,993.16
  5. Step 5: Solve for x
    x = 17,791,993.16/5,340.86
  6. Step 6: Final answer
    x = 3,331.30

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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.