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Finding the Fourth Proportional to 2,146.95, 3,220.67 and 608.07

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Solution

The fourth proportional to 2,146.95, 3,220.67 and 608.07 is: 912.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.95 : 3,220.67 = 608.07 : x
  2. Step 2: Convert to fraction form
    2,146.95/3,220.67 = 608.07/x
  3. Step 3: Cross multiply
    2,146.95x = 3,220.67 × 608.07
  4. Step 4: Simplify right side
    2,146.95x = 1,958,389.77
  5. Step 5: Solve for x
    x = 1,958,389.77/2,146.95
  6. Step 6: Final answer
    x = 912.17

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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.