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Finding the Fourth Proportional to 7,001.70, 10,502.64 and 2,618.22

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Solution

The fourth proportional to 7,001.70, 10,502.64 and 2,618.22 is: 3,927.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.70 : 10,502.64 = 2,618.22 : x
  2. Step 2: Convert to fraction form
    7,001.70/10,502.64 = 2,618.22/x
  3. Step 3: Cross multiply
    7,001.70x = 10,502.64 × 2,618.22
  4. Step 4: Simplify right side
    7,001.70x = 27,498,222.10
  5. Step 5: Solve for x
    x = 27,498,222.10/7,001.70
  6. Step 6: Final answer
    x = 3,927.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.