Home / 2,289.77-3,162.12-1,956.25

Finding the Fourth Proportional to 2,289.77, 3,162.12 and 1,956.25

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Solution

The fourth proportional to 2,289.77, 3,162.12 and 1,956.25 is: 2,701.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.77 : 3,162.12 = 1,956.25 : x
  2. Step 2: Convert to fraction form
    2,289.77/3,162.12 = 1,956.25/x
  3. Step 3: Cross multiply
    2,289.77x = 3,162.12 × 1,956.25
  4. Step 4: Simplify right side
    2,289.77x = 6,185,871.66
  5. Step 5: Solve for x
    x = 6,185,871.66/2,289.77
  6. Step 6: Final answer
    x = 2,701.53

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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.