Home / 2,197.12-3,030.66-1,358.08

Finding the Fourth Proportional to 2,197.12, 3,030.66 and 1,358.08

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Solution

The fourth proportional to 2,197.12, 3,030.66 and 1,358.08 is: 1,873.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.12 : 3,030.66 = 1,358.08 : x
  2. Step 2: Convert to fraction form
    2,197.12/3,030.66 = 1,358.08/x
  3. Step 3: Cross multiply
    2,197.12x = 3,030.66 × 1,358.08
  4. Step 4: Simplify right side
    2,197.12x = 4,115,878.73
  5. Step 5: Solve for x
    x = 4,115,878.73/2,197.12
  6. Step 6: Final answer
    x = 1,873.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.