Home / 3,215.01-4,438.14-1,888.80

Finding the Fourth Proportional to 3,215.01, 4,438.14 and 1,888.80

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Solution

The fourth proportional to 3,215.01, 4,438.14 and 1,888.80 is: 2,607.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.01 : 4,438.14 = 1,888.80 : x
  2. Step 2: Convert to fraction form
    3,215.01/4,438.14 = 1,888.80/x
  3. Step 3: Cross multiply
    3,215.01x = 4,438.14 × 1,888.80
  4. Step 4: Simplify right side
    3,215.01x = 8,382,741.36
  5. Step 5: Solve for x
    x = 8,382,741.36/3,215.01
  6. Step 6: Final answer
    x = 2,607.38

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Half scale
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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.