Home / 5,470.40-8,200.20-2,179.10

Finding the Fourth Proportional to 5,470.40, 8,200.20 and 2,179.10

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Solution

The fourth proportional to 5,470.40, 8,200.20 and 2,179.10 is: 3,266.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.40 : 8,200.20 = 2,179.10 : x
  2. Step 2: Convert to fraction form
    5,470.40/8,200.20 = 2,179.10/x
  3. Step 3: Cross multiply
    5,470.40x = 8,200.20 × 2,179.10
  4. Step 4: Simplify right side
    5,470.40x = 17,869,055.82
  5. Step 5: Solve for x
    x = 17,869,055.82/5,470.40
  6. Step 6: Final answer
    x = 3,266.50

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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.