Home / 2,187.19-3,280.72-888.63

Finding the Fourth Proportional to 2,187.19, 3,280.72 and 888.63

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Solution

The fourth proportional to 2,187.19, 3,280.72 and 888.63 is: 1,332.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.19 : 3,280.72 = 888.63 : x
  2. Step 2: Convert to fraction form
    2,187.19/3,280.72 = 888.63/x
  3. Step 3: Cross multiply
    2,187.19x = 3,280.72 × 888.63
  4. Step 4: Simplify right side
    2,187.19x = 2,915,346.21
  5. Step 5: Solve for x
    x = 2,915,346.21/2,187.19
  6. Step 6: Final answer
    x = 1,332.92

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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.