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Finding the Fourth Proportional to 5,000.40, 6,890.40 and 4,736.88

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Solution

The fourth proportional to 5,000.40, 6,890.40 and 4,736.88 is: 6,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.40 : 6,890.40 = 4,736.88 : x
  2. Step 2: Convert to fraction form
    5,000.40/6,890.40 = 4,736.88/x
  3. Step 3: Cross multiply
    5,000.40x = 6,890.40 × 4,736.88
  4. Step 4: Simplify right side
    5,000.40x = 32,638,997.95
  5. Step 5: Solve for x
    x = 32,638,997.95/5,000.40
  6. Step 6: Final answer
    x = 6,527.28

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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.