Home / 4,817.17-7,220.85-1,891.45

Finding the Fourth Proportional to 4,817.17, 7,220.85 and 1,891.45

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Solution

The fourth proportional to 4,817.17, 7,220.85 and 1,891.45 is: 2,835.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,817.17 : 7,220.85 = 1,891.45 : x
  2. Step 2: Convert to fraction form
    4,817.17/7,220.85 = 1,891.45/x
  3. Step 3: Cross multiply
    4,817.17x = 7,220.85 × 1,891.45
  4. Step 4: Simplify right side
    4,817.17x = 13,657,876.73
  5. Step 5: Solve for x
    x = 13,657,876.73/4,817.17
  6. Step 6: Final answer
    x = 2,835.25

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Double scale
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Similar ratio
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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.