Home / 2,312.82-3,469.20-581.45

Finding the Fourth Proportional to 2,312.82, 3,469.20 and 581.45

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Solution

The fourth proportional to 2,312.82, 3,469.20 and 581.45 is: 872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.82 : 3,469.20 = 581.45 : x
  2. Step 2: Convert to fraction form
    2,312.82/3,469.20 = 581.45/x
  3. Step 3: Cross multiply
    2,312.82x = 3,469.20 × 581.45
  4. Step 4: Simplify right side
    2,312.82x = 2,017,148.99
  5. Step 5: Solve for x
    x = 2,017,148.99/2,312.82
  6. Step 6: Final answer
    x = 872.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.