Home / 2,847.15-3,929.12-1,588.23

Finding the Fourth Proportional to 2,847.15, 3,929.12 and 1,588.23

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Solution

The fourth proportional to 2,847.15, 3,929.12 and 1,588.23 is: 2,191.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.15 : 3,929.12 = 1,588.23 : x
  2. Step 2: Convert to fraction form
    2,847.15/3,929.12 = 1,588.23/x
  3. Step 3: Cross multiply
    2,847.15x = 3,929.12 × 1,588.23
  4. Step 4: Simplify right side
    2,847.15x = 6,240,346.26
  5. Step 5: Solve for x
    x = 6,240,346.26/2,847.15
  6. Step 6: Final answer
    x = 2,191.79

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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.