Home / 3,887.65-5,831.34-1,114.35

Finding the Fourth Proportional to 3,887.65, 5,831.34 and 1,114.35

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Solution

The fourth proportional to 3,887.65, 5,831.34 and 1,114.35 is: 1,671.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.65 : 5,831.34 = 1,114.35 : x
  2. Step 2: Convert to fraction form
    3,887.65/5,831.34 = 1,114.35/x
  3. Step 3: Cross multiply
    3,887.65x = 5,831.34 × 1,114.35
  4. Step 4: Simplify right side
    3,887.65x = 6,498,153.73
  5. Step 5: Solve for x
    x = 6,498,153.73/3,887.65
  6. Step 6: Final answer
    x = 1,671.49

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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.