Home / 2,312.99-3,190.43-1,604.49

Finding the Fourth Proportional to 2,312.99, 3,190.43 and 1,604.49

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Solution

The fourth proportional to 2,312.99, 3,190.43 and 1,604.49 is: 2,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.99 : 3,190.43 = 1,604.49 : x
  2. Step 2: Convert to fraction form
    2,312.99/3,190.43 = 1,604.49/x
  3. Step 3: Cross multiply
    2,312.99x = 3,190.43 × 1,604.49
  4. Step 4: Simplify right side
    2,312.99x = 5,119,005.01
  5. Step 5: Solve for x
    x = 5,119,005.01/2,312.99
  6. Step 6: Final answer
    x = 2,213.16

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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.