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Finding the Fourth Proportional to 1,860.93, 2,791.71 and 886.71

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Solution

The fourth proportional to 1,860.93, 2,791.71 and 886.71 is: 1,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.93 : 2,791.71 = 886.71 : x
  2. Step 2: Convert to fraction form
    1,860.93/2,791.71 = 886.71/x
  3. Step 3: Cross multiply
    1,860.93x = 2,791.71 × 886.71
  4. Step 4: Simplify right side
    1,860.93x = 2,475,437.17
  5. Step 5: Solve for x
    x = 2,475,437.17/1,860.93
  6. Step 6: Final answer
    x = 1,330.22

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1.5x scale

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.