Home / 6,395.30-8,820.11-4,155.44

Finding the Fourth Proportional to 6,395.30, 8,820.11 and 4,155.44

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Solution

The fourth proportional to 6,395.30, 8,820.11 and 4,155.44 is: 5,731.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,395.30 : 8,820.11 = 4,155.44 : x
  2. Step 2: Convert to fraction form
    6,395.30/8,820.11 = 4,155.44/x
  3. Step 3: Cross multiply
    6,395.30x = 8,820.11 × 4,155.44
  4. Step 4: Simplify right side
    6,395.30x = 36,651,470.34
  5. Step 5: Solve for x
    x = 36,651,470.34/6,395.30
  6. Step 6: Final answer
    x = 5,731.01

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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.