Home / 7,281.40-10,922.10-4,948.60

Finding the Fourth Proportional to 7,281.40, 10,922.10 and 4,948.60

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Solution

The fourth proportional to 7,281.40, 10,922.10 and 4,948.60 is: 7,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.40 : 10,922.10 = 4,948.60 : x
  2. Step 2: Convert to fraction form
    7,281.40/10,922.10 = 4,948.60/x
  3. Step 3: Cross multiply
    7,281.40x = 10,922.10 × 4,948.60
  4. Step 4: Simplify right side
    7,281.40x = 54,049,104.06
  5. Step 5: Solve for x
    x = 54,049,104.06/7,281.40
  6. Step 6: Final answer
    x = 7,422.90

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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.