Home / 7,208.60-9,947.94-4,226.20

Finding the Fourth Proportional to 7,208.60, 9,947.94 and 4,226.20

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Solution

The fourth proportional to 7,208.60, 9,947.94 and 4,226.20 is: 5,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.60 : 9,947.94 = 4,226.20 : x
  2. Step 2: Convert to fraction form
    7,208.60/9,947.94 = 4,226.20/x
  3. Step 3: Cross multiply
    7,208.60x = 9,947.94 × 4,226.20
  4. Step 4: Simplify right side
    7,208.60x = 42,041,984.03
  5. Step 5: Solve for x
    x = 42,041,984.03/7,208.60
  6. Step 6: Final answer
    x = 5,832.20

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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.