Home / 3,673.12-5,070.88-2,831.98

Finding the Fourth Proportional to 3,673.12, 5,070.88 and 2,831.98

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Solution

The fourth proportional to 3,673.12, 5,070.88 and 2,831.98 is: 3,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,673.12 : 5,070.88 = 2,831.98 : x
  2. Step 2: Convert to fraction form
    3,673.12/5,070.88 = 2,831.98/x
  3. Step 3: Cross multiply
    3,673.12x = 5,070.88 × 2,831.98
  4. Step 4: Simplify right side
    3,673.12x = 14,360,630.74
  5. Step 5: Solve for x
    x = 14,360,630.74/3,673.12
  6. Step 6: Final answer
    x = 3,909.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.