Home / 3,033.40-4,186.29-1,689.22

Finding the Fourth Proportional to 3,033.40, 4,186.29 and 1,689.22

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Solution

The fourth proportional to 3,033.40, 4,186.29 and 1,689.22 is: 2,331.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,033.40 : 4,186.29 = 1,689.22 : x
  2. Step 2: Convert to fraction form
    3,033.40/4,186.29 = 1,689.22/x
  3. Step 3: Cross multiply
    3,033.40x = 4,186.29 × 1,689.22
  4. Step 4: Simplify right side
    3,033.40x = 7,071,564.79
  5. Step 5: Solve for x
    x = 7,071,564.79/3,033.40
  6. Step 6: Final answer
    x = 2,331.23

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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.