Home / 1,551.28-2,141.14-888.30

Finding the Fourth Proportional to 1,551.28, 2,141.14 and 888.30

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Solution

The fourth proportional to 1,551.28, 2,141.14 and 888.30 is: 1,226.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.28 : 2,141.14 = 888.30 : x
  2. Step 2: Convert to fraction form
    1,551.28/2,141.14 = 888.30/x
  3. Step 3: Cross multiply
    1,551.28x = 2,141.14 × 888.30
  4. Step 4: Simplify right side
    1,551.28x = 1,901,974.66
  5. Step 5: Solve for x
    x = 1,901,974.66/1,551.28
  6. Step 6: Final answer
    x = 1,226.07

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1.5x scale

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.