Home / 7,420.28-11,130.42-3,036.76

Finding the Fourth Proportional to 7,420.28, 11,130.42 and 3,036.76

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Solution

The fourth proportional to 7,420.28, 11,130.42 and 3,036.76 is: 4,555.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.28 : 11,130.42 = 3,036.76 : x
  2. Step 2: Convert to fraction form
    7,420.28/11,130.42 = 3,036.76/x
  3. Step 3: Cross multiply
    7,420.28x = 11,130.42 × 3,036.76
  4. Step 4: Simplify right side
    7,420.28x = 33,800,414.24
  5. Step 5: Solve for x
    x = 33,800,414.24/7,420.28
  6. Step 6: Final answer
    x = 4,555.14

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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.