Home / 2,195.91-3,031.34-1,400.31

Finding the Fourth Proportional to 2,195.91, 3,031.34 and 1,400.31

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Solution

The fourth proportional to 2,195.91, 3,031.34 and 1,400.31 is: 1,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.91 : 3,031.34 = 1,400.31 : x
  2. Step 2: Convert to fraction form
    2,195.91/3,031.34 = 1,400.31/x
  3. Step 3: Cross multiply
    2,195.91x = 3,031.34 × 1,400.31
  4. Step 4: Simplify right side
    2,195.91x = 4,244,808.71
  5. Step 5: Solve for x
    x = 4,244,808.71/2,195.91
  6. Step 6: Final answer
    x = 1,933.05

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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.