Home / 7,211.12-9,952.29-4,228.11

Finding the Fourth Proportional to 7,211.12, 9,952.29 and 4,228.11

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Solution

The fourth proportional to 7,211.12, 9,952.29 and 4,228.11 is: 5,835.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.12 : 9,952.29 = 4,228.11 : x
  2. Step 2: Convert to fraction form
    7,211.12/9,952.29 = 4,228.11/x
  3. Step 3: Cross multiply
    7,211.12x = 9,952.29 × 4,228.11
  4. Step 4: Simplify right side
    7,211.12x = 42,079,376.87
  5. Step 5: Solve for x
    x = 42,079,376.87/7,211.12
  6. Step 6: Final answer
    x = 5,835.35

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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.