Home / 3,390.36-5,085.54-1,831.66

Finding the Fourth Proportional to 3,390.36, 5,085.54 and 1,831.66

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Solution

The fourth proportional to 3,390.36, 5,085.54 and 1,831.66 is: 2,747.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.36 : 5,085.54 = 1,831.66 : x
  2. Step 2: Convert to fraction form
    3,390.36/5,085.54 = 1,831.66/x
  3. Step 3: Cross multiply
    3,390.36x = 5,085.54 × 1,831.66
  4. Step 4: Simplify right side
    3,390.36x = 9,314,980.20
  5. Step 5: Solve for x
    x = 9,314,980.20/3,390.36
  6. Step 6: Final answer
    x = 2,747.49

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Similar ratio
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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.