Home / 5,720.04-7,887.85-3,831.32

Finding the Fourth Proportional to 5,720.04, 7,887.85 and 3,831.32

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Solution

The fourth proportional to 5,720.04, 7,887.85 and 3,831.32 is: 5,283.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.04 : 7,887.85 = 3,831.32 : x
  2. Step 2: Convert to fraction form
    5,720.04/7,887.85 = 3,831.32/x
  3. Step 3: Cross multiply
    5,720.04x = 7,887.85 × 3,831.32
  4. Step 4: Simplify right side
    5,720.04x = 30,220,887.60
  5. Step 5: Solve for x
    x = 30,220,887.60/5,720.04
  6. Step 6: Final answer
    x = 5,283.34

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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.