Home / 1,394.27-2,091.33-572.51

Finding the Fourth Proportional to 1,394.27, 2,091.33 and 572.51

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Solution

The fourth proportional to 1,394.27, 2,091.33 and 572.51 is: 858.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.27 : 2,091.33 = 572.51 : x
  2. Step 2: Convert to fraction form
    1,394.27/2,091.33 = 572.51/x
  3. Step 3: Cross multiply
    1,394.27x = 2,091.33 × 572.51
  4. Step 4: Simplify right side
    1,394.27x = 1,197,307.34
  5. Step 5: Solve for x
    x = 1,197,307.34/1,394.27
  6. Step 6: Final answer
    x = 858.73

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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.