Home / 2,382.72-3,570.76-1,860.36

Finding the Fourth Proportional to 2,382.72, 3,570.76 and 1,860.36

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Solution

The fourth proportional to 2,382.72, 3,570.76 and 1,860.36 is: 2,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.72 : 3,570.76 = 1,860.36 : x
  2. Step 2: Convert to fraction form
    2,382.72/3,570.76 = 1,860.36/x
  3. Step 3: Cross multiply
    2,382.72x = 3,570.76 × 1,860.36
  4. Step 4: Simplify right side
    2,382.72x = 6,642,899.07
  5. Step 5: Solve for x
    x = 6,642,899.07/2,382.72
  6. Step 6: Final answer
    x = 2,787.95

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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.