Home / 1,364.13-1,871.85-1,239.39

Finding the Fourth Proportional to 1,364.13, 1,871.85 and 1,239.39

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Solution

The fourth proportional to 1,364.13, 1,871.85 and 1,239.39 is: 1,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.13 : 1,871.85 = 1,239.39 : x
  2. Step 2: Convert to fraction form
    1,364.13/1,871.85 = 1,239.39/x
  3. Step 3: Cross multiply
    1,364.13x = 1,871.85 × 1,239.39
  4. Step 4: Simplify right side
    1,364.13x = 2,319,952.17
  5. Step 5: Solve for x
    x = 2,319,952.17/1,364.13
  6. Step 6: Final answer
    x = 1,700.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.