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Finding the Fourth Proportional to 1,552.96, 2,328.72 and 903.88

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Solution

The fourth proportional to 1,552.96, 2,328.72 and 903.88 is: 1,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.96 : 2,328.72 = 903.88 : x
  2. Step 2: Convert to fraction form
    1,552.96/2,328.72 = 903.88/x
  3. Step 3: Cross multiply
    1,552.96x = 2,328.72 × 903.88
  4. Step 4: Simplify right side
    1,552.96x = 2,104,883.43
  5. Step 5: Solve for x
    x = 2,104,883.43/1,552.96
  6. Step 6: Final answer
    x = 1,355.40

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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.