Home / 5,148.77-7,723.09-1,253.18

Finding the Fourth Proportional to 5,148.77, 7,723.09 and 1,253.18

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Solution

The fourth proportional to 5,148.77, 7,723.09 and 1,253.18 is: 1,879.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.77 : 7,723.09 = 1,253.18 : x
  2. Step 2: Convert to fraction form
    5,148.77/7,723.09 = 1,253.18/x
  3. Step 3: Cross multiply
    5,148.77x = 7,723.09 × 1,253.18
  4. Step 4: Simplify right side
    5,148.77x = 9,678,421.93
  5. Step 5: Solve for x
    x = 9,678,421.93/5,148.77
  6. Step 6: Final answer
    x = 1,879.75

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1.5x scale

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.