Home / 3,888.56-5,366.34-2,210.12

Finding the Fourth Proportional to 3,888.56, 5,366.34 and 2,210.12

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Solution

The fourth proportional to 3,888.56, 5,366.34 and 2,210.12 is: 3,050.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.56 : 5,366.34 = 2,210.12 : x
  2. Step 2: Convert to fraction form
    3,888.56/5,366.34 = 2,210.12/x
  3. Step 3: Cross multiply
    3,888.56x = 5,366.34 × 2,210.12
  4. Step 4: Simplify right side
    3,888.56x = 11,860,255.36
  5. Step 5: Solve for x
    x = 11,860,255.36/3,888.56
  6. Step 6: Final answer
    x = 3,050.04

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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.