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Finding the Fourth Proportional to 4,652.18, 6,420.04 and 2,789.18

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Solution

The fourth proportional to 4,652.18, 6,420.04 and 2,789.18 is: 3,849.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,652.18 : 6,420.04 = 2,789.18 : x
  2. Step 2: Convert to fraction form
    4,652.18/6,420.04 = 2,789.18/x
  3. Step 3: Cross multiply
    4,652.18x = 6,420.04 × 2,789.18
  4. Step 4: Simplify right side
    4,652.18x = 17,906,647.17
  5. Step 5: Solve for x
    x = 17,906,647.17/4,652.18
  6. Step 6: Final answer
    x = 3,849.09

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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.