Home / 3,585.60-5,378.40-3,221.10

Finding the Fourth Proportional to 3,585.60, 5,378.40 and 3,221.10

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Solution

The fourth proportional to 3,585.60, 5,378.40 and 3,221.10 is: 4,831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.60 : 5,378.40 = 3,221.10 : x
  2. Step 2: Convert to fraction form
    3,585.60/5,378.40 = 3,221.10/x
  3. Step 3: Cross multiply
    3,585.60x = 5,378.40 × 3,221.10
  4. Step 4: Simplify right side
    3,585.60x = 17,324,364.24
  5. Step 5: Solve for x
    x = 17,324,364.24/3,585.60
  6. Step 6: Final answer
    x = 4,831.65

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Double scale
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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.