Home / 1,778.95-2,665.80-1,584.32

Finding the Fourth Proportional to 1,778.95, 2,665.80 and 1,584.32

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Solution

The fourth proportional to 1,778.95, 2,665.80 and 1,584.32 is: 2,374.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.95 : 2,665.80 = 1,584.32 : x
  2. Step 2: Convert to fraction form
    1,778.95/2,665.80 = 1,584.32/x
  3. Step 3: Cross multiply
    1,778.95x = 2,665.80 × 1,584.32
  4. Step 4: Simplify right side
    1,778.95x = 4,223,480.26
  5. Step 5: Solve for x
    x = 4,223,480.26/1,778.95
  6. Step 6: Final answer
    x = 2,374.14

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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.