Home / 1,551.20-2,140.52-888.08

Finding the Fourth Proportional to 1,551.20, 2,140.52 and 888.08

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Solution

The fourth proportional to 1,551.20, 2,140.52 and 888.08 is: 1,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.20 : 2,140.52 = 888.08 : x
  2. Step 2: Convert to fraction form
    1,551.20/2,140.52 = 888.08/x
  3. Step 3: Cross multiply
    1,551.20x = 2,140.52 × 888.08
  4. Step 4: Simplify right side
    1,551.20x = 1,900,953.00
  5. Step 5: Solve for x
    x = 1,900,953.00/1,551.20
  6. Step 6: Final answer
    x = 1,225.47

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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.