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Finding the Fourth Proportional to 1,759.80, 2,428.52 and 973.84

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Solution

The fourth proportional to 1,759.80, 2,428.52 and 973.84 is: 1,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759.80 : 2,428.52 = 973.84 : x
  2. Step 2: Convert to fraction form
    1,759.80/2,428.52 = 973.84/x
  3. Step 3: Cross multiply
    1,759.80x = 2,428.52 × 973.84
  4. Step 4: Simplify right side
    1,759.80x = 2,364,989.92
  5. Step 5: Solve for x
    x = 2,364,989.92/1,759.80
  6. Step 6: Final answer
    x = 1,343.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.