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Finding the Fourth Proportional to 1,942.45, 2,913.77 and 555.99

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Solution

The fourth proportional to 1,942.45, 2,913.77 and 555.99 is: 834.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.45 : 2,913.77 = 555.99 : x
  2. Step 2: Convert to fraction form
    1,942.45/2,913.77 = 555.99/x
  3. Step 3: Cross multiply
    1,942.45x = 2,913.77 × 555.99
  4. Step 4: Simplify right side
    1,942.45x = 1,620,026.98
  5. Step 5: Solve for x
    x = 1,620,026.98/1,942.45
  6. Step 6: Final answer
    x = 834.01

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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.