Home / 7,220-9,965.14-4,954.44

Finding the Fourth Proportional to 7,220, 9,965.14 and 4,954.44

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Solution

The fourth proportional to 7,220, 9,965.14 and 4,954.44 is: 6,838.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220 : 9,965.14 = 4,954.44 : x
  2. Step 2: Convert to fraction form
    7,220/9,965.14 = 4,954.44/x
  3. Step 3: Cross multiply
    7,220x = 9,965.14 × 4,954.44
  4. Step 4: Simplify right side
    7,220x = 49,371,688.22
  5. Step 5: Solve for x
    x = 49,371,688.22/7,220
  6. Step 6: Final answer
    x = 6,838.18

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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.