Home / 3,315.47-4,575.15-1,899.05

Finding the Fourth Proportional to 3,315.47, 4,575.15 and 1,899.05

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Solution

The fourth proportional to 3,315.47, 4,575.15 and 1,899.05 is: 2,620.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.47 : 4,575.15 = 1,899.05 : x
  2. Step 2: Convert to fraction form
    3,315.47/4,575.15 = 1,899.05/x
  3. Step 3: Cross multiply
    3,315.47x = 4,575.15 × 1,899.05
  4. Step 4: Simplify right side
    3,315.47x = 8,688,415.73
  5. Step 5: Solve for x
    x = 8,688,415.73/3,315.47
  6. Step 6: Final answer
    x = 2,620.57

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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.