Home / 1,517.81-2,092.37-1,307.07

Finding the Fourth Proportional to 1,517.81, 2,092.37 and 1,307.07

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Solution

The fourth proportional to 1,517.81, 2,092.37 and 1,307.07 is: 1,801.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.81 : 2,092.37 = 1,307.07 : x
  2. Step 2: Convert to fraction form
    1,517.81/2,092.37 = 1,307.07/x
  3. Step 3: Cross multiply
    1,517.81x = 2,092.37 × 1,307.07
  4. Step 4: Simplify right side
    1,517.81x = 2,734,867.52
  5. Step 5: Solve for x
    x = 2,734,867.52/1,517.81
  6. Step 6: Final answer
    x = 1,801.86

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1.5x scale

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.