Home / 2,831.01-4,246.98-1,187.68

Finding the Fourth Proportional to 2,831.01, 4,246.98 and 1,187.68

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Solution

The fourth proportional to 2,831.01, 4,246.98 and 1,187.68 is: 1,781.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.01 : 4,246.98 = 1,187.68 : x
  2. Step 2: Convert to fraction form
    2,831.01/4,246.98 = 1,187.68/x
  3. Step 3: Cross multiply
    2,831.01x = 4,246.98 × 1,187.68
  4. Step 4: Simplify right side
    2,831.01x = 5,044,053.21
  5. Step 5: Solve for x
    x = 5,044,053.21/2,831.01
  6. Step 6: Final answer
    x = 1,781.72

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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.