Home / 1,368.28-2,051.70-935.56

Finding the Fourth Proportional to 1,368.28, 2,051.70 and 935.56

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Solution

The fourth proportional to 1,368.28, 2,051.70 and 935.56 is: 1,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.28 : 2,051.70 = 935.56 : x
  2. Step 2: Convert to fraction form
    1,368.28/2,051.70 = 935.56/x
  3. Step 3: Cross multiply
    1,368.28x = 2,051.70 × 935.56
  4. Step 4: Simplify right side
    1,368.28x = 1,919,488.45
  5. Step 5: Solve for x
    x = 1,919,488.45/1,368.28
  6. Step 6: Final answer
    x = 1,402.85

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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.