Home / 1,551.16-2,140.62-888.07

Finding the Fourth Proportional to 1,551.16, 2,140.62 and 888.07

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Solution

The fourth proportional to 1,551.16, 2,140.62 and 888.07 is: 1,225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.16 : 2,140.62 = 888.07 : x
  2. Step 2: Convert to fraction form
    1,551.16/2,140.62 = 888.07/x
  3. Step 3: Cross multiply
    1,551.16x = 2,140.62 × 888.07
  4. Step 4: Simplify right side
    1,551.16x = 1,901,020.40
  5. Step 5: Solve for x
    x = 1,901,020.40/1,551.16
  6. Step 6: Final answer
    x = 1,225.55

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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.