Home / 2,831.55-3,911.48-2,693.16

Finding the Fourth Proportional to 2,831.55, 3,911.48 and 2,693.16

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Solution

The fourth proportional to 2,831.55, 3,911.48 and 2,693.16 is: 3,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.55 : 3,911.48 = 2,693.16 : x
  2. Step 2: Convert to fraction form
    2,831.55/3,911.48 = 2,693.16/x
  3. Step 3: Cross multiply
    2,831.55x = 3,911.48 × 2,693.16
  4. Step 4: Simplify right side
    2,831.55x = 10,534,228.01
  5. Step 5: Solve for x
    x = 10,534,228.01/2,831.55
  6. Step 6: Final answer
    x = 3,720.30

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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.