Home / 1,950.30-2,688.54-1,203.66

Finding the Fourth Proportional to 1,950.30, 2,688.54 and 1,203.66

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Solution

The fourth proportional to 1,950.30, 2,688.54 and 1,203.66 is: 1,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.30 : 2,688.54 = 1,203.66 : x
  2. Step 2: Convert to fraction form
    1,950.30/2,688.54 = 1,203.66/x
  3. Step 3: Cross multiply
    1,950.30x = 2,688.54 × 1,203.66
  4. Step 4: Simplify right side
    1,950.30x = 3,236,088.06
  5. Step 5: Solve for x
    x = 3,236,088.06/1,950.30
  6. Step 6: Final answer
    x = 1,659.28

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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.