Home / 3,315.43-4,575.42-1,899.34

Finding the Fourth Proportional to 3,315.43, 4,575.42 and 1,899.34

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Solution

The fourth proportional to 3,315.43, 4,575.42 and 1,899.34 is: 2,621.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.43 : 4,575.42 = 1,899.34 : x
  2. Step 2: Convert to fraction form
    3,315.43/4,575.42 = 1,899.34/x
  3. Step 3: Cross multiply
    3,315.43x = 4,575.42 × 1,899.34
  4. Step 4: Simplify right side
    3,315.43x = 8,690,278.22
  5. Step 5: Solve for x
    x = 8,690,278.22/3,315.43
  6. Step 6: Final answer
    x = 2,621.16

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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.