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Finding the Fourth Proportional to 4,984.86, 7,476.69 and 2,649.63

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Solution

The fourth proportional to 4,984.86, 7,476.69 and 2,649.63 is: 3,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.86 : 7,476.69 = 2,649.63 : x
  2. Step 2: Convert to fraction form
    4,984.86/7,476.69 = 2,649.63/x
  3. Step 3: Cross multiply
    4,984.86x = 7,476.69 × 2,649.63
  4. Step 4: Simplify right side
    4,984.86x = 19,810,462.12
  5. Step 5: Solve for x
    x = 19,810,462.12/4,984.86
  6. Step 6: Final answer
    x = 3,974.13

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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.