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Finding the Fourth Proportional to 4,858.52, 7,288.84 and 1,780.52

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Solution

The fourth proportional to 4,858.52, 7,288.84 and 1,780.52 is: 2,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,858.52 : 7,288.84 = 1,780.52 : x
  2. Step 2: Convert to fraction form
    4,858.52/7,288.84 = 1,780.52/x
  3. Step 3: Cross multiply
    4,858.52x = 7,288.84 × 1,780.52
  4. Step 4: Simplify right side
    4,858.52x = 12,977,925.40
  5. Step 5: Solve for x
    x = 12,977,925.40/4,858.52
  6. Step 6: Final answer
    x = 2,671.17

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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.