Home / 2,766.58-3,817.65-1,587.40

Finding the Fourth Proportional to 2,766.58, 3,817.65 and 1,587.40

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Solution

The fourth proportional to 2,766.58, 3,817.65 and 1,587.40 is: 2,190.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.58 : 3,817.65 = 1,587.40 : x
  2. Step 2: Convert to fraction form
    2,766.58/3,817.65 = 1,587.40/x
  3. Step 3: Cross multiply
    2,766.58x = 3,817.65 × 1,587.40
  4. Step 4: Simplify right side
    2,766.58x = 6,060,137.61
  5. Step 5: Solve for x
    x = 6,060,137.61/2,766.58
  6. Step 6: Final answer
    x = 2,190.48

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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.