Home / 2,055.85-2,838.26-1,310.45

Finding the Fourth Proportional to 2,055.85, 2,838.26 and 1,310.45

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Solution

The fourth proportional to 2,055.85, 2,838.26 and 1,310.45 is: 1,809.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055.85 : 2,838.26 = 1,310.45 : x
  2. Step 2: Convert to fraction form
    2,055.85/2,838.26 = 1,310.45/x
  3. Step 3: Cross multiply
    2,055.85x = 2,838.26 × 1,310.45
  4. Step 4: Simplify right side
    2,055.85x = 3,719,386.90
  5. Step 5: Solve for x
    x = 3,719,386.90/2,055.85
  6. Step 6: Final answer
    x = 1,809.17

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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.