Home / 3,920.05-5,884.08-2,070.82

Finding the Fourth Proportional to 3,920.05, 5,884.08 and 2,070.82

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Solution

The fourth proportional to 3,920.05, 5,884.08 and 2,070.82 is: 3,108.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.05 : 5,884.08 = 2,070.82 : x
  2. Step 2: Convert to fraction form
    3,920.05/5,884.08 = 2,070.82/x
  3. Step 3: Cross multiply
    3,920.05x = 5,884.08 × 2,070.82
  4. Step 4: Simplify right side
    3,920.05x = 12,184,870.55
  5. Step 5: Solve for x
    x = 12,184,870.55/3,920.05
  6. Step 6: Final answer
    x = 3,108.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.