Home / 2,188.16-3,280.19-954.56

Finding the Fourth Proportional to 2,188.16, 3,280.19 and 954.56

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Solution

The fourth proportional to 2,188.16, 3,280.19 and 954.56 is: 1,430.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.16 : 3,280.19 = 954.56 : x
  2. Step 2: Convert to fraction form
    2,188.16/3,280.19 = 954.56/x
  3. Step 3: Cross multiply
    2,188.16x = 3,280.19 × 954.56
  4. Step 4: Simplify right side
    2,188.16x = 3,131,116.99
  5. Step 5: Solve for x
    x = 3,131,116.99/2,188.16
  6. Step 6: Final answer
    x = 1,430.94

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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.