Home / 3,415.42-4,711.39-2,070.15

Finding the Fourth Proportional to 3,415.42, 4,711.39 and 2,070.15

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Solution

The fourth proportional to 3,415.42, 4,711.39 and 2,070.15 is: 2,855.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.42 : 4,711.39 = 2,070.15 : x
  2. Step 2: Convert to fraction form
    3,415.42/4,711.39 = 2,070.15/x
  3. Step 3: Cross multiply
    3,415.42x = 4,711.39 × 2,070.15
  4. Step 4: Simplify right side
    3,415.42x = 9,753,284.01
  5. Step 5: Solve for x
    x = 9,753,284.01/3,415.42
  6. Step 6: Final answer
    x = 2,855.66

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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.