Home / 5,221.08-7,831.62-1,760.76

Finding the Fourth Proportional to 5,221.08, 7,831.62 and 1,760.76

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Solution

The fourth proportional to 5,221.08, 7,831.62 and 1,760.76 is: 2,641.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.08 : 7,831.62 = 1,760.76 : x
  2. Step 2: Convert to fraction form
    5,221.08/7,831.62 = 1,760.76/x
  3. Step 3: Cross multiply
    5,221.08x = 7,831.62 × 1,760.76
  4. Step 4: Simplify right side
    5,221.08x = 13,789,603.23
  5. Step 5: Solve for x
    x = 13,789,603.23/5,221.08
  6. Step 6: Final answer
    x = 2,641.14

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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.