Home / 3,215.69-4,436.84-1,889.13

Finding the Fourth Proportional to 3,215.69, 4,436.84 and 1,889.13

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Solution

The fourth proportional to 3,215.69, 4,436.84 and 1,889.13 is: 2,606.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.69 : 4,436.84 = 1,889.13 : x
  2. Step 2: Convert to fraction form
    3,215.69/4,436.84 = 1,889.13/x
  3. Step 3: Cross multiply
    3,215.69x = 4,436.84 × 1,889.13
  4. Step 4: Simplify right side
    3,215.69x = 8,381,758.10
  5. Step 5: Solve for x
    x = 8,381,758.10/3,215.69
  6. Step 6: Final answer
    x = 2,606.52

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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.