Home / 2,847.46-3,928.57-1,588.31

Finding the Fourth Proportional to 2,847.46, 3,928.57 and 1,588.31

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Solution

The fourth proportional to 2,847.46, 3,928.57 and 1,588.31 is: 2,191.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.46 : 3,928.57 = 1,588.31 : x
  2. Step 2: Convert to fraction form
    2,847.46/3,928.57 = 1,588.31/x
  3. Step 3: Cross multiply
    2,847.46x = 3,928.57 × 1,588.31
  4. Step 4: Simplify right side
    2,847.46x = 6,239,781.49
  5. Step 5: Solve for x
    x = 6,239,781.49/2,847.46
  6. Step 6: Final answer
    x = 2,191.35

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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.