Home / 5,189.02-7,160.91-2,831.32

Finding the Fourth Proportional to 5,189.02, 7,160.91 and 2,831.32

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Solution

The fourth proportional to 5,189.02, 7,160.91 and 2,831.32 is: 3,907.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.02 : 7,160.91 = 2,831.32 : x
  2. Step 2: Convert to fraction form
    5,189.02/7,160.91 = 2,831.32/x
  3. Step 3: Cross multiply
    5,189.02x = 7,160.91 × 2,831.32
  4. Step 4: Simplify right side
    5,189.02x = 20,274,827.70
  5. Step 5: Solve for x
    x = 20,274,827.70/5,189.02
  6. Step 6: Final answer
    x = 3,907.26

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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.