Home / 7,278.18-10,043.34-4,133.76

Finding the Fourth Proportional to 7,278.18, 10,043.34 and 4,133.76

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Solution

The fourth proportional to 7,278.18, 10,043.34 and 4,133.76 is: 5,704.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.18 : 10,043.34 = 4,133.76 : x
  2. Step 2: Convert to fraction form
    7,278.18/10,043.34 = 4,133.76/x
  3. Step 3: Cross multiply
    7,278.18x = 10,043.34 × 4,133.76
  4. Step 4: Simplify right side
    7,278.18x = 41,516,757.16
  5. Step 5: Solve for x
    x = 41,516,757.16/7,278.18
  6. Step 6: Final answer
    x = 5,704.28

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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.