Home / 1,853.07-2,780.06-1,306.32

Finding the Fourth Proportional to 1,853.07, 2,780.06 and 1,306.32

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Solution

The fourth proportional to 1,853.07, 2,780.06 and 1,306.32 is: 1,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.07 : 2,780.06 = 1,306.32 : x
  2. Step 2: Convert to fraction form
    1,853.07/2,780.06 = 1,306.32/x
  3. Step 3: Cross multiply
    1,853.07x = 2,780.06 × 1,306.32
  4. Step 4: Simplify right side
    1,853.07x = 3,631,647.98
  5. Step 5: Solve for x
    x = 3,631,647.98/1,853.07
  6. Step 6: Final answer
    x = 1,959.80

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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.