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Finding the Fourth Proportional to 4,985.00, 6,887.78 and 4,354.55

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Solution

The fourth proportional to 4,985.00, 6,887.78 and 4,354.55 is: 6,016.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.00 : 6,887.78 = 4,354.55 : x
  2. Step 2: Convert to fraction form
    4,985.00/6,887.78 = 4,354.55/x
  3. Step 3: Cross multiply
    4,985.00x = 6,887.78 × 4,354.55
  4. Step 4: Simplify right side
    4,985.00x = 29,993,126.19
  5. Step 5: Solve for x
    x = 29,993,126.19/4,985.00
  6. Step 6: Final answer
    x = 6,016.68

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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.