Home / 1,942.32-2,913.44-481.46

Finding the Fourth Proportional to 1,942.32, 2,913.44 and 481.46

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Solution

The fourth proportional to 1,942.32, 2,913.44 and 481.46 is: 722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.32 : 2,913.44 = 481.46 : x
  2. Step 2: Convert to fraction form
    1,942.32/2,913.44 = 481.46/x
  3. Step 3: Cross multiply
    1,942.32x = 2,913.44 × 481.46
  4. Step 4: Simplify right side
    1,942.32x = 1,402,690.26
  5. Step 5: Solve for x
    x = 1,402,690.26/1,942.32
  6. Step 6: Final answer
    x = 722.17

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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.