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Finding the Fourth Proportional to 2,837.62, 4,256.52 and 988.93

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Solution

The fourth proportional to 2,837.62, 4,256.52 and 988.93 is: 1,483.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.62 : 4,256.52 = 988.93 : x
  2. Step 2: Convert to fraction form
    2,837.62/4,256.52 = 988.93/x
  3. Step 3: Cross multiply
    2,837.62x = 4,256.52 × 988.93
  4. Step 4: Simplify right side
    2,837.62x = 4,209,400.32
  5. Step 5: Solve for x
    x = 4,209,400.32/2,837.62
  6. Step 6: Final answer
    x = 1,483.43

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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.