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Finding the Fourth Proportional to 7,207.88, 9,945.34 and 4,376.74

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Solution

The fourth proportional to 7,207.88, 9,945.34 and 4,376.74 is: 6,038.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.88 : 9,945.34 = 4,376.74 : x
  2. Step 2: Convert to fraction form
    7,207.88/9,945.34 = 4,376.74/x
  3. Step 3: Cross multiply
    7,207.88x = 9,945.34 × 4,376.74
  4. Step 4: Simplify right side
    7,207.88x = 43,528,167.39
  5. Step 5: Solve for x
    x = 43,528,167.39/7,207.88
  6. Step 6: Final answer
    x = 6,038.97

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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.