Home / 2,203.15-3,305.28-1,555.15

Finding the Fourth Proportional to 2,203.15, 3,305.28 and 1,555.15

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Solution

The fourth proportional to 2,203.15, 3,305.28 and 1,555.15 is: 2,333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.15 : 3,305.28 = 1,555.15 : x
  2. Step 2: Convert to fraction form
    2,203.15/3,305.28 = 1,555.15/x
  3. Step 3: Cross multiply
    2,203.15x = 3,305.28 × 1,555.15
  4. Step 4: Simplify right side
    2,203.15x = 5,140,206.19
  5. Step 5: Solve for x
    x = 5,140,206.19/2,203.15
  6. Step 6: Final answer
    x = 2,333.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.