Home / 5,148.96-7,723.40-1,253.28

Finding the Fourth Proportional to 5,148.96, 7,723.40 and 1,253.28

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Solution

The fourth proportional to 5,148.96, 7,723.40 and 1,253.28 is: 1,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.96 : 7,723.40 = 1,253.28 : x
  2. Step 2: Convert to fraction form
    5,148.96/7,723.40 = 1,253.28/x
  3. Step 3: Cross multiply
    5,148.96x = 7,723.40 × 1,253.28
  4. Step 4: Simplify right side
    5,148.96x = 9,679,582.75
  5. Step 5: Solve for x
    x = 9,679,582.75/5,148.96
  6. Step 6: Final answer
    x = 1,879.91

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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.