Home / 2,205.55-3,043.70-1,210.87

Finding the Fourth Proportional to 2,205.55, 3,043.70 and 1,210.87

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Solution

The fourth proportional to 2,205.55, 3,043.70 and 1,210.87 is: 1,671.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.55 : 3,043.70 = 1,210.87 : x
  2. Step 2: Convert to fraction form
    2,205.55/3,043.70 = 1,210.87/x
  3. Step 3: Cross multiply
    2,205.55x = 3,043.70 × 1,210.87
  4. Step 4: Simplify right side
    2,205.55x = 3,685,527.31
  5. Step 5: Solve for x
    x = 3,685,527.31/2,205.55
  6. Step 6: Final answer
    x = 1,671.02

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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.