Home / 2,777.40-3,833.28-1,659.20

Finding the Fourth Proportional to 2,777.40, 3,833.28 and 1,659.20

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Solution

The fourth proportional to 2,777.40, 3,833.28 and 1,659.20 is: 2,289.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.40 : 3,833.28 = 1,659.20 : x
  2. Step 2: Convert to fraction form
    2,777.40/3,833.28 = 1,659.20/x
  3. Step 3: Cross multiply
    2,777.40x = 3,833.28 × 1,659.20
  4. Step 4: Simplify right side
    2,777.40x = 6,360,159.01
  5. Step 5: Solve for x
    x = 6,360,159.01/2,777.40
  6. Step 6: Final answer
    x = 2,289.97

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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.