Home / 3,903.71-5,386.03-2,331.23

Finding the Fourth Proportional to 3,903.71, 5,386.03 and 2,331.23

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Solution

The fourth proportional to 3,903.71, 5,386.03 and 2,331.23 is: 3,216.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.71 : 5,386.03 = 2,331.23 : x
  2. Step 2: Convert to fraction form
    3,903.71/5,386.03 = 2,331.23/x
  3. Step 3: Cross multiply
    3,903.71x = 5,386.03 × 2,331.23
  4. Step 4: Simplify right side
    3,903.71x = 12,556,074.72
  5. Step 5: Solve for x
    x = 12,556,074.72/3,903.71
  6. Step 6: Final answer
    x = 3,216.45

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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.