Home / 1,343.24-2,014.89-521.70

Finding the Fourth Proportional to 1,343.24, 2,014.89 and 521.70

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Solution

The fourth proportional to 1,343.24, 2,014.89 and 521.70 is: 782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.24 : 2,014.89 = 521.70 : x
  2. Step 2: Convert to fraction form
    1,343.24/2,014.89 = 521.70/x
  3. Step 3: Cross multiply
    1,343.24x = 2,014.89 × 521.70
  4. Step 4: Simplify right side
    1,343.24x = 1,051,168.11
  5. Step 5: Solve for x
    x = 1,051,168.11/1,343.24
  6. Step 6: Final answer
    x = 782.56

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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.