Home / 1,721.18-2,375.23-1,013.05

Finding the Fourth Proportional to 1,721.18, 2,375.23 and 1,013.05

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Solution

The fourth proportional to 1,721.18, 2,375.23 and 1,013.05 is: 1,398.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.18 : 2,375.23 = 1,013.05 : x
  2. Step 2: Convert to fraction form
    1,721.18/2,375.23 = 1,013.05/x
  3. Step 3: Cross multiply
    1,721.18x = 2,375.23 × 1,013.05
  4. Step 4: Simplify right side
    1,721.18x = 2,406,214.88
  5. Step 5: Solve for x
    x = 2,406,214.88/1,721.18
  6. Step 6: Final answer
    x = 1,398.01

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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.