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Finding the Fourth Proportional to 1,437.89, 2,153.16 and 888.39

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Solution

The fourth proportional to 1,437.89, 2,153.16 and 888.39 is: 1,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.89 : 2,153.16 = 888.39 : x
  2. Step 2: Convert to fraction form
    1,437.89/2,153.16 = 888.39/x
  3. Step 3: Cross multiply
    1,437.89x = 2,153.16 × 888.39
  4. Step 4: Simplify right side
    1,437.89x = 1,912,845.81
  5. Step 5: Solve for x
    x = 1,912,845.81/1,437.89
  6. Step 6: Final answer
    x = 1,330.32

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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.