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Finding the Fourth Proportional to 7,397.00, 10,207.82 and 4,039.80

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Solution

The fourth proportional to 7,397.00, 10,207.82 and 4,039.80 is: 5,574.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,397.00 : 10,207.82 = 4,039.80 : x
  2. Step 2: Convert to fraction form
    7,397.00/10,207.82 = 4,039.80/x
  3. Step 3: Cross multiply
    7,397.00x = 10,207.82 × 4,039.80
  4. Step 4: Simplify right side
    7,397.00x = 41,237,551.77
  5. Step 5: Solve for x
    x = 41,237,551.77/7,397.00
  6. Step 6: Final answer
    x = 5,574.91

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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.