Home / 2,203.95-3,041.34-1,209.20

Finding the Fourth Proportional to 2,203.95, 3,041.34 and 1,209.20

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Solution

The fourth proportional to 2,203.95, 3,041.34 and 1,209.20 is: 1,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.95 : 3,041.34 = 1,209.20 : x
  2. Step 2: Convert to fraction form
    2,203.95/3,041.34 = 1,209.20/x
  3. Step 3: Cross multiply
    2,203.95x = 3,041.34 × 1,209.20
  4. Step 4: Simplify right side
    2,203.95x = 3,677,573.12
  5. Step 5: Solve for x
    x = 3,677,573.12/2,203.95
  6. Step 6: Final answer
    x = 1,668.63

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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.