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Finding the Fourth Proportional to 6,398.93, 8,834.01 and 4,420.14

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Solution

The fourth proportional to 6,398.93, 8,834.01 and 4,420.14 is: 6,102.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.93 : 8,834.01 = 4,420.14 : x
  2. Step 2: Convert to fraction form
    6,398.93/8,834.01 = 4,420.14/x
  3. Step 3: Cross multiply
    6,398.93x = 8,834.01 × 4,420.14
  4. Step 4: Simplify right side
    6,398.93x = 39,047,536.12
  5. Step 5: Solve for x
    x = 39,047,536.12/6,398.93
  6. Step 6: Final answer
    x = 6,102.20

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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.