Home / 3,415.13-4,711.21-2,086.52

Finding the Fourth Proportional to 3,415.13, 4,711.21 and 2,086.52

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Solution

The fourth proportional to 3,415.13, 4,711.21 and 2,086.52 is: 2,878.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.13 : 4,711.21 = 2,086.52 : x
  2. Step 2: Convert to fraction form
    3,415.13/4,711.21 = 2,086.52/x
  3. Step 3: Cross multiply
    3,415.13x = 4,711.21 × 2,086.52
  4. Step 4: Simplify right side
    3,415.13x = 9,830,005.12
  5. Step 5: Solve for x
    x = 9,830,005.12/3,415.13
  6. Step 6: Final answer
    x = 2,878.37

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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.