Home / 3,380.13-4,656.35-2,810.57

Finding the Fourth Proportional to 3,380.13, 4,656.35 and 2,810.57

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Solution

The fourth proportional to 3,380.13, 4,656.35 and 2,810.57 is: 3,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.13 : 4,656.35 = 2,810.57 : x
  2. Step 2: Convert to fraction form
    3,380.13/4,656.35 = 2,810.57/x
  3. Step 3: Cross multiply
    3,380.13x = 4,656.35 × 2,810.57
  4. Step 4: Simplify right side
    3,380.13x = 13,086,981.36
  5. Step 5: Solve for x
    x = 13,086,981.36/3,380.13
  6. Step 6: Final answer
    x = 3,871.74

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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.