Home / 3,505.10-5,256.21-2,809.58

Finding the Fourth Proportional to 3,505.10, 5,256.21 and 2,809.58

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Solution

The fourth proportional to 3,505.10, 5,256.21 and 2,809.58 is: 4,213.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.10 : 5,256.21 = 2,809.58 : x
  2. Step 2: Convert to fraction form
    3,505.10/5,256.21 = 2,809.58/x
  3. Step 3: Cross multiply
    3,505.10x = 5,256.21 × 2,809.58
  4. Step 4: Simplify right side
    3,505.10x = 14,767,742.49
  5. Step 5: Solve for x
    x = 14,767,742.49/3,505.10
  6. Step 6: Final answer
    x = 4,213.22

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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.