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Finding the Fourth Proportional to 3,440.60, 5,160.60 and 1,132.10

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Solution

The fourth proportional to 3,440.60, 5,160.60 and 1,132.10 is: 1,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.60 : 5,160.60 = 1,132.10 : x
  2. Step 2: Convert to fraction form
    3,440.60/5,160.60 = 1,132.10/x
  3. Step 3: Cross multiply
    3,440.60x = 5,160.60 × 1,132.10
  4. Step 4: Simplify right side
    3,440.60x = 5,842,315.26
  5. Step 5: Solve for x
    x = 5,842,315.26/3,440.60
  6. Step 6: Final answer
    x = 1,698.05

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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.