Home / 1,867.32-2,788.47-1,772.55

Finding the Fourth Proportional to 1,867.32, 2,788.47 and 1,772.55

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Solution

The fourth proportional to 1,867.32, 2,788.47 and 1,772.55 is: 2,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.32 : 2,788.47 = 1,772.55 : x
  2. Step 2: Convert to fraction form
    1,867.32/2,788.47 = 1,772.55/x
  3. Step 3: Cross multiply
    1,867.32x = 2,788.47 × 1,772.55
  4. Step 4: Simplify right side
    1,867.32x = 4,942,702.50
  5. Step 5: Solve for x
    x = 4,942,702.50/1,867.32
  6. Step 6: Final answer
    x = 2,646.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.