Home / 4,950.50-6,831.69-2,742.50

Finding the Fourth Proportional to 4,950.50, 6,831.69 and 2,742.50

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Solution

The fourth proportional to 4,950.50, 6,831.69 and 2,742.50 is: 3,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,950.50 : 6,831.69 = 2,742.50 : x
  2. Step 2: Convert to fraction form
    4,950.50/6,831.69 = 2,742.50/x
  3. Step 3: Cross multiply
    4,950.50x = 6,831.69 × 2,742.50
  4. Step 4: Simplify right side
    4,950.50x = 18,735,909.83
  5. Step 5: Solve for x
    x = 18,735,909.83/4,950.50
  6. Step 6: Final answer
    x = 3,784.65

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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.