Home / 1,942.45-2,914.13-555.81

Finding the Fourth Proportional to 1,942.45, 2,914.13 and 555.81

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Solution

The fourth proportional to 1,942.45, 2,914.13 and 555.81 is: 833.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.45 : 2,914.13 = 555.81 : x
  2. Step 2: Convert to fraction form
    1,942.45/2,914.13 = 555.81/x
  3. Step 3: Cross multiply
    1,942.45x = 2,914.13 × 555.81
  4. Step 4: Simplify right side
    1,942.45x = 1,619,688.02
  5. Step 5: Solve for x
    x = 1,619,688.02/1,942.45
  6. Step 6: Final answer
    x = 833.84

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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.