Home / 2,788.89-4,184.10-1,557.19

Finding the Fourth Proportional to 2,788.89, 4,184.10 and 1,557.19

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Solution

The fourth proportional to 2,788.89, 4,184.10 and 1,557.19 is: 2,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.89 : 4,184.10 = 1,557.19 : x
  2. Step 2: Convert to fraction form
    2,788.89/4,184.10 = 1,557.19/x
  3. Step 3: Cross multiply
    2,788.89x = 4,184.10 × 1,557.19
  4. Step 4: Simplify right side
    2,788.89x = 6,515,409.97
  5. Step 5: Solve for x
    x = 6,515,409.97/2,788.89
  6. Step 6: Final answer
    x = 2,336.20

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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.