Home / 3,215.08-4,436.08-1,888.28

Finding the Fourth Proportional to 3,215.08, 4,436.08 and 1,888.28

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Solution

The fourth proportional to 3,215.08, 4,436.08 and 1,888.28 is: 2,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.08 : 4,436.08 = 1,888.28 : x
  2. Step 2: Convert to fraction form
    3,215.08/4,436.08 = 1,888.28/x
  3. Step 3: Cross multiply
    3,215.08x = 4,436.08 × 1,888.28
  4. Step 4: Simplify right side
    3,215.08x = 8,376,561.14
  5. Step 5: Solve for x
    x = 8,376,561.14/3,215.08
  6. Step 6: Final answer
    x = 2,605.40

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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.