Home / 3,116.41-4,301.28-1,858.21

Finding the Fourth Proportional to 3,116.41, 4,301.28 and 1,858.21

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Solution

The fourth proportional to 3,116.41, 4,301.28 and 1,858.21 is: 2,564.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.41 : 4,301.28 = 1,858.21 : x
  2. Step 2: Convert to fraction form
    3,116.41/4,301.28 = 1,858.21/x
  3. Step 3: Cross multiply
    3,116.41x = 4,301.28 × 1,858.21
  4. Step 4: Simplify right side
    3,116.41x = 7,992,681.51
  5. Step 5: Solve for x
    x = 7,992,681.51/3,116.41
  6. Step 6: Final answer
    x = 2,564.71

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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.