Home / 7,211.34-9,952.20-4,226.40

Finding the Fourth Proportional to 7,211.34, 9,952.20 and 4,226.40

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Solution

The fourth proportional to 7,211.34, 9,952.20 and 4,226.40 is: 5,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.34 : 9,952.20 = 4,226.40 : x
  2. Step 2: Convert to fraction form
    7,211.34/9,952.20 = 4,226.40/x
  3. Step 3: Cross multiply
    7,211.34x = 9,952.20 × 4,226.40
  4. Step 4: Simplify right side
    7,211.34x = 42,061,978.08
  5. Step 5: Solve for x
    x = 42,061,978.08/7,211.34
  6. Step 6: Final answer
    x = 5,832.75

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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.