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Finding the Fourth Proportional to 1,942.84, 2,913.82 and 556.17

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Solution

The fourth proportional to 1,942.84, 2,913.82 and 556.17 is: 834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.84 : 2,913.82 = 556.17 : x
  2. Step 2: Convert to fraction form
    1,942.84/2,913.82 = 556.17/x
  3. Step 3: Cross multiply
    1,942.84x = 2,913.82 × 556.17
  4. Step 4: Simplify right side
    1,942.84x = 1,620,570.08
  5. Step 5: Solve for x
    x = 1,620,570.08/1,942.84
  6. Step 6: Final answer
    x = 834.13

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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.