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Finding the Fourth Proportional to 1,947.84, 2,907.57 and 1,675.68

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Solution

The fourth proportional to 1,947.84, 2,907.57 and 1,675.68 is: 2,501.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.84 : 2,907.57 = 1,675.68 : x
  2. Step 2: Convert to fraction form
    1,947.84/2,907.57 = 1,675.68/x
  3. Step 3: Cross multiply
    1,947.84x = 2,907.57 × 1,675.68
  4. Step 4: Simplify right side
    1,947.84x = 4,872,156.90
  5. Step 5: Solve for x
    x = 4,872,156.90/1,947.84
  6. Step 6: Final answer
    x = 2,501.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.