Home / 2,055.77-2,837.90-1,310.75

Finding the Fourth Proportional to 2,055.77, 2,837.90 and 1,310.75

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Solution

The fourth proportional to 2,055.77, 2,837.90 and 1,310.75 is: 1,809.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055.77 : 2,837.90 = 1,310.75 : x
  2. Step 2: Convert to fraction form
    2,055.77/2,837.90 = 1,310.75/x
  3. Step 3: Cross multiply
    2,055.77x = 2,837.90 × 1,310.75
  4. Step 4: Simplify right side
    2,055.77x = 3,719,777.43
  5. Step 5: Solve for x
    x = 3,719,777.43/2,055.77
  6. Step 6: Final answer
    x = 1,809.43

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1.5x scale

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.