Home / 1,788.75-2,468.48-1,042.74

Finding the Fourth Proportional to 1,788.75, 2,468.48 and 1,042.74

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Solution

The fourth proportional to 1,788.75, 2,468.48 and 1,042.74 is: 1,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.75 : 2,468.48 = 1,042.74 : x
  2. Step 2: Convert to fraction form
    1,788.75/2,468.48 = 1,042.74/x
  3. Step 3: Cross multiply
    1,788.75x = 2,468.48 × 1,042.74
  4. Step 4: Simplify right side
    1,788.75x = 2,573,977.62
  5. Step 5: Solve for x
    x = 2,573,977.62/1,788.75
  6. Step 6: Final answer
    x = 1,438.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.