Home / 2,829.75-3,905.06-1,587.75

Finding the Fourth Proportional to 2,829.75, 3,905.06 and 1,587.75

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Solution

The fourth proportional to 2,829.75, 3,905.06 and 1,587.75 is: 2,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.75 : 3,905.06 = 1,587.75 : x
  2. Step 2: Convert to fraction form
    2,829.75/3,905.06 = 1,587.75/x
  3. Step 3: Cross multiply
    2,829.75x = 3,905.06 × 1,587.75
  4. Step 4: Simplify right side
    2,829.75x = 6,200,251.08
  5. Step 5: Solve for x
    x = 6,200,251.08/2,829.75
  6. Step 6: Final answer
    x = 2,191.10

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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.