Home / 5,221.71-7,831.35-2,445.75

Finding the Fourth Proportional to 5,221.71, 7,831.35 and 2,445.75

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Solution

The fourth proportional to 5,221.71, 7,831.35 and 2,445.75 is: 3,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.71 : 7,831.35 = 2,445.75 : x
  2. Step 2: Convert to fraction form
    5,221.71/7,831.35 = 2,445.75/x
  3. Step 3: Cross multiply
    5,221.71x = 7,831.35 × 2,445.75
  4. Step 4: Simplify right side
    5,221.71x = 19,153,524.26
  5. Step 5: Solve for x
    x = 19,153,524.26/5,221.71
  6. Step 6: Final answer
    x = 3,668.06

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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.