Home / 2,847.38-3,929.40-1,588.51

Finding the Fourth Proportional to 2,847.38, 3,929.40 and 1,588.51

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Solution

The fourth proportional to 2,847.38, 3,929.40 and 1,588.51 is: 2,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.38 : 3,929.40 = 1,588.51 : x
  2. Step 2: Convert to fraction form
    2,847.38/3,929.40 = 1,588.51/x
  3. Step 3: Cross multiply
    2,847.38x = 3,929.40 × 1,588.51
  4. Step 4: Simplify right side
    2,847.38x = 6,241,891.19
  5. Step 5: Solve for x
    x = 6,241,891.19/2,847.38
  6. Step 6: Final answer
    x = 2,192.15

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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.