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Finding the Fourth Proportional to 3,386.60, 5,069.10 and 2,652.20

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Solution

The fourth proportional to 3,386.60, 5,069.10 and 2,652.20 is: 3,969.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.60 : 5,069.10 = 2,652.20 : x
  2. Step 2: Convert to fraction form
    3,386.60/5,069.10 = 2,652.20/x
  3. Step 3: Cross multiply
    3,386.60x = 5,069.10 × 2,652.20
  4. Step 4: Simplify right side
    3,386.60x = 13,444,267.02
  5. Step 5: Solve for x
    x = 13,444,267.02/3,386.60
  6. Step 6: Final answer
    x = 3,969.84

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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.