Home / 3,831.50-5,285.55-2,572.86

Finding the Fourth Proportional to 3,831.50, 5,285.55 and 2,572.86

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Solution

The fourth proportional to 3,831.50, 5,285.55 and 2,572.86 is: 3,549.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.50 : 5,285.55 = 2,572.86 : x
  2. Step 2: Convert to fraction form
    3,831.50/5,285.55 = 2,572.86/x
  3. Step 3: Cross multiply
    3,831.50x = 5,285.55 × 2,572.86
  4. Step 4: Simplify right side
    3,831.50x = 13,599,009.64
  5. Step 5: Solve for x
    x = 13,599,009.64/3,831.50
  6. Step 6: Final answer
    x = 3,549.26

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1.5x scale

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.