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Finding the Fourth Proportional to 6,535, 9,802.50 and 1,918

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Solution

The fourth proportional to 6,535, 9,802.50 and 1,918 is: 2,877

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,535 : 9,802.50 = 1,918 : x
  2. Step 2: Convert to fraction form
    6,535/9,802.50 = 1,918/x
  3. Step 3: Cross multiply
    6,535x = 9,802.50 × 1,918
  4. Step 4: Simplify right side
    6,535x = 18,801,195
  5. Step 5: Solve for x
    x = 18,801,195/6,535
  6. Step 6: Final answer
    x = 2,877

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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.