Home / 1,527.81-2,278.78-1,481.69

Finding the Fourth Proportional to 1,527.81, 2,278.78 and 1,481.69

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Solution

The fourth proportional to 1,527.81, 2,278.78 and 1,481.69 is: 2,209.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,527.81 : 2,278.78 = 1,481.69 : x
  2. Step 2: Convert to fraction form
    1,527.81/2,278.78 = 1,481.69/x
  3. Step 3: Cross multiply
    1,527.81x = 2,278.78 × 1,481.69
  4. Step 4: Simplify right side
    1,527.81x = 3,376,455.87
  5. Step 5: Solve for x
    x = 3,376,455.87/1,527.81
  6. Step 6: Final answer
    x = 2,209.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.