Home / 1,681.24-2,319.96-935.23

Finding the Fourth Proportional to 1,681.24, 2,319.96 and 935.23

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Solution

The fourth proportional to 1,681.24, 2,319.96 and 935.23 is: 1,290.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.24 : 2,319.96 = 935.23 : x
  2. Step 2: Convert to fraction form
    1,681.24/2,319.96 = 935.23/x
  3. Step 3: Cross multiply
    1,681.24x = 2,319.96 × 935.23
  4. Step 4: Simplify right side
    1,681.24x = 2,169,696.19
  5. Step 5: Solve for x
    x = 2,169,696.19/1,681.24
  6. Step 6: Final answer
    x = 1,290.53

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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.