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Finding the Fourth Proportional to 4,897.68, 6,754.12 and 3,220.50

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Solution

The fourth proportional to 4,897.68, 6,754.12 and 3,220.50 is: 4,441.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,897.68 : 6,754.12 = 3,220.50 : x
  2. Step 2: Convert to fraction form
    4,897.68/6,754.12 = 3,220.50/x
  3. Step 3: Cross multiply
    4,897.68x = 6,754.12 × 3,220.50
  4. Step 4: Simplify right side
    4,897.68x = 21,751,643.46
  5. Step 5: Solve for x
    x = 21,751,643.46/4,897.68
  6. Step 6: Final answer
    x = 4,441.21

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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.