Home / 2,331.80-3,218.27-1,585.34

Finding the Fourth Proportional to 2,331.80, 3,218.27 and 1,585.34

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Solution

The fourth proportional to 2,331.80, 3,218.27 and 1,585.34 is: 2,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.80 : 3,218.27 = 1,585.34 : x
  2. Step 2: Convert to fraction form
    2,331.80/3,218.27 = 1,585.34/x
  3. Step 3: Cross multiply
    2,331.80x = 3,218.27 × 1,585.34
  4. Step 4: Simplify right side
    2,331.80x = 5,102,040.21
  5. Step 5: Solve for x
    x = 5,102,040.21/2,331.80
  6. Step 6: Final answer
    x = 2,188.03

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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.