Home / 2,198.60-3,297.90-1,507.40

Finding the Fourth Proportional to 2,198.60, 3,297.90 and 1,507.40

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Solution

The fourth proportional to 2,198.60, 3,297.90 and 1,507.40 is: 2,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.60 : 3,297.90 = 1,507.40 : x
  2. Step 2: Convert to fraction form
    2,198.60/3,297.90 = 1,507.40/x
  3. Step 3: Cross multiply
    2,198.60x = 3,297.90 × 1,507.40
  4. Step 4: Simplify right side
    2,198.60x = 4,971,254.46
  5. Step 5: Solve for x
    x = 4,971,254.46/2,198.60
  6. Step 6: Final answer
    x = 2,261.10

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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.