Home / 5,231.74-7,848.57-1,721.89

Finding the Fourth Proportional to 5,231.74, 7,848.57 and 1,721.89

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Solution

The fourth proportional to 5,231.74, 7,848.57 and 1,721.89 is: 2,583.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.74 : 7,848.57 = 1,721.89 : x
  2. Step 2: Convert to fraction form
    5,231.74/7,848.57 = 1,721.89/x
  3. Step 3: Cross multiply
    5,231.74x = 7,848.57 × 1,721.89
  4. Step 4: Simplify right side
    5,231.74x = 13,514,372.77
  5. Step 5: Solve for x
    x = 13,514,372.77/5,231.74
  6. Step 6: Final answer
    x = 2,583.15

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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.