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Finding the Fourth Proportional to 6,637.04, 9,951.74 and 3,971.28

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Solution

The fourth proportional to 6,637.04, 9,951.74 and 3,971.28 is: 5,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,637.04 : 9,951.74 = 3,971.28 : x
  2. Step 2: Convert to fraction form
    6,637.04/9,951.74 = 3,971.28/x
  3. Step 3: Cross multiply
    6,637.04x = 9,951.74 × 3,971.28
  4. Step 4: Simplify right side
    6,637.04x = 39,521,126.17
  5. Step 5: Solve for x
    x = 39,521,126.17/6,637.04
  6. Step 6: Final answer
    x = 5,954.64

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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.