Home / 2,039.49-3,054.65-942.21

Finding the Fourth Proportional to 2,039.49, 3,054.65 and 942.21

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Solution

The fourth proportional to 2,039.49, 3,054.65 and 942.21 is: 1,411.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.49 : 3,054.65 = 942.21 : x
  2. Step 2: Convert to fraction form
    2,039.49/3,054.65 = 942.21/x
  3. Step 3: Cross multiply
    2,039.49x = 3,054.65 × 942.21
  4. Step 4: Simplify right side
    2,039.49x = 2,878,117.07
  5. Step 5: Solve for x
    x = 2,878,117.07/2,039.49
  6. Step 6: Final answer
    x = 1,411.19

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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.