Home / 1,490.18-2,055.65-950.81

Finding the Fourth Proportional to 1,490.18, 2,055.65 and 950.81

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Solution

The fourth proportional to 1,490.18, 2,055.65 and 950.81 is: 1,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.18 : 2,055.65 = 950.81 : x
  2. Step 2: Convert to fraction form
    1,490.18/2,055.65 = 950.81/x
  3. Step 3: Cross multiply
    1,490.18x = 2,055.65 × 950.81
  4. Step 4: Simplify right side
    1,490.18x = 1,954,517.54
  5. Step 5: Solve for x
    x = 1,954,517.54/1,490.18
  6. Step 6: Final answer
    x = 1,311.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.