Home / 2,341.72-3,231.66-1,347.20

Finding the Fourth Proportional to 2,341.72, 3,231.66 and 1,347.20

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Solution

The fourth proportional to 2,341.72, 3,231.66 and 1,347.20 is: 1,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.72 : 3,231.66 = 1,347.20 : x
  2. Step 2: Convert to fraction form
    2,341.72/3,231.66 = 1,347.20/x
  3. Step 3: Cross multiply
    2,341.72x = 3,231.66 × 1,347.20
  4. Step 4: Simplify right side
    2,341.72x = 4,353,692.35
  5. Step 5: Solve for x
    x = 4,353,692.35/2,341.72
  6. Step 6: Final answer
    x = 1,859.19

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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.