Home / 2,301.60-3,452.90-840.75

Finding the Fourth Proportional to 2,301.60, 3,452.90 and 840.75

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Solution

The fourth proportional to 2,301.60, 3,452.90 and 840.75 is: 1,261.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.60 : 3,452.90 = 840.75 : x
  2. Step 2: Convert to fraction form
    2,301.60/3,452.90 = 840.75/x
  3. Step 3: Cross multiply
    2,301.60x = 3,452.90 × 840.75
  4. Step 4: Simplify right side
    2,301.60x = 2,903,025.68
  5. Step 5: Solve for x
    x = 2,903,025.68/2,301.60
  6. Step 6: Final answer
    x = 1,261.31

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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.