Home / 2,187.03-3,015.09-1,870.95

Finding the Fourth Proportional to 2,187.03, 3,015.09 and 1,870.95

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Solution

The fourth proportional to 2,187.03, 3,015.09 and 1,870.95 is: 2,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.03 : 3,015.09 = 1,870.95 : x
  2. Step 2: Convert to fraction form
    2,187.03/3,015.09 = 1,870.95/x
  3. Step 3: Cross multiply
    2,187.03x = 3,015.09 × 1,870.95
  4. Step 4: Simplify right side
    2,187.03x = 5,641,082.64
  5. Step 5: Solve for x
    x = 5,641,082.64/2,187.03
  6. Step 6: Final answer
    x = 2,579.33

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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.