Home / 3,315.10-4,575.68-1,899.25

Finding the Fourth Proportional to 3,315.10, 4,575.68 and 1,899.25

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Solution

The fourth proportional to 3,315.10, 4,575.68 and 1,899.25 is: 2,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.10 : 4,575.68 = 1,899.25 : x
  2. Step 2: Convert to fraction form
    3,315.10/4,575.68 = 1,899.25/x
  3. Step 3: Cross multiply
    3,315.10x = 4,575.68 × 1,899.25
  4. Step 4: Simplify right side
    3,315.10x = 8,690,360.24
  5. Step 5: Solve for x
    x = 8,690,360.24/3,315.10
  6. Step 6: Final answer
    x = 2,621.45

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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.