Home / 2,588.29-3,867.26-1,918.31

Finding the Fourth Proportional to 2,588.29, 3,867.26 and 1,918.31

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Solution

The fourth proportional to 2,588.29, 3,867.26 and 1,918.31 is: 2,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.29 : 3,867.26 = 1,918.31 : x
  2. Step 2: Convert to fraction form
    2,588.29/3,867.26 = 1,918.31/x
  3. Step 3: Cross multiply
    2,588.29x = 3,867.26 × 1,918.31
  4. Step 4: Simplify right side
    2,588.29x = 7,418,574.60
  5. Step 5: Solve for x
    x = 7,418,574.60/2,588.29
  6. Step 6: Final answer
    x = 2,866.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.