Home / 4,820.85-6,651.23-2,831.90

Finding the Fourth Proportional to 4,820.85, 6,651.23 and 2,831.90

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Solution

The fourth proportional to 4,820.85, 6,651.23 and 2,831.90 is: 3,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.85 : 6,651.23 = 2,831.90 : x
  2. Step 2: Convert to fraction form
    4,820.85/6,651.23 = 2,831.90/x
  3. Step 3: Cross multiply
    4,820.85x = 6,651.23 × 2,831.90
  4. Step 4: Simplify right side
    4,820.85x = 18,835,570.82
  5. Step 5: Solve for x
    x = 18,835,570.82/4,820.85
  6. Step 6: Final answer
    x = 3,907.11

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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.