Home / 1,302.81-1,937.60-1,269.97

Finding the Fourth Proportional to 1,302.81, 1,937.60 and 1,269.97

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Solution

The fourth proportional to 1,302.81, 1,937.60 and 1,269.97 is: 1,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.81 : 1,937.60 = 1,269.97 : x
  2. Step 2: Convert to fraction form
    1,302.81/1,937.60 = 1,269.97/x
  3. Step 3: Cross multiply
    1,302.81x = 1,937.60 × 1,269.97
  4. Step 4: Simplify right side
    1,302.81x = 2,460,693.87
  5. Step 5: Solve for x
    x = 2,460,693.87/1,302.81
  6. Step 6: Final answer
    x = 1,888.76

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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.