Home / 7,216.20-10,821.60-2,534.40

Finding the Fourth Proportional to 7,216.20, 10,821.60 and 2,534.40

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Solution

The fourth proportional to 7,216.20, 10,821.60 and 2,534.40 is: 3,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.20 : 10,821.60 = 2,534.40 : x
  2. Step 2: Convert to fraction form
    7,216.20/10,821.60 = 2,534.40/x
  3. Step 3: Cross multiply
    7,216.20x = 10,821.60 × 2,534.40
  4. Step 4: Simplify right side
    7,216.20x = 27,426,263.04
  5. Step 5: Solve for x
    x = 27,426,263.04/7,216.20
  6. Step 6: Final answer
    x = 3,800.65

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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.