Home / 3,215.64-4,826.28-1,831.76

Finding the Fourth Proportional to 3,215.64, 4,826.28 and 1,831.76

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Solution

The fourth proportional to 3,215.64, 4,826.28 and 1,831.76 is: 2,749.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.64 : 4,826.28 = 1,831.76 : x
  2. Step 2: Convert to fraction form
    3,215.64/4,826.28 = 1,831.76/x
  3. Step 3: Cross multiply
    3,215.64x = 4,826.28 × 1,831.76
  4. Step 4: Simplify right side
    3,215.64x = 8,840,586.65
  5. Step 5: Solve for x
    x = 8,840,586.65/3,215.64
  6. Step 6: Final answer
    x = 2,749.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.