Home / 2,777.50-3,833.19-1,535.74

Finding the Fourth Proportional to 2,777.50, 3,833.19 and 1,535.74

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Solution

The fourth proportional to 2,777.50, 3,833.19 and 1,535.74 is: 2,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.50 : 3,833.19 = 1,535.74 : x
  2. Step 2: Convert to fraction form
    2,777.50/3,833.19 = 1,535.74/x
  3. Step 3: Cross multiply
    2,777.50x = 3,833.19 × 1,535.74
  4. Step 4: Simplify right side
    2,777.50x = 5,886,783.21
  5. Step 5: Solve for x
    x = 5,886,783.21/2,777.50
  6. Step 6: Final answer
    x = 2,119.45

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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.