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Finding the Fourth Proportional to 5,979.48, 9,003.98 and 4,430.49

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Solution

The fourth proportional to 5,979.48, 9,003.98 and 4,430.49 is: 6,671.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.48 : 9,003.98 = 4,430.49 : x
  2. Step 2: Convert to fraction form
    5,979.48/9,003.98 = 4,430.49/x
  3. Step 3: Cross multiply
    5,979.48x = 9,003.98 × 4,430.49
  4. Step 4: Simplify right side
    5,979.48x = 39,892,021.20
  5. Step 5: Solve for x
    x = 39,892,021.20/5,979.48
  6. Step 6: Final answer
    x = 6,671.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.