Home / 2,611.17-3,913.99-1,880.35

Finding the Fourth Proportional to 2,611.17, 3,913.99 and 1,880.35

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Solution

The fourth proportional to 2,611.17, 3,913.99 and 1,880.35 is: 2,818.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.17 : 3,913.99 = 1,880.35 : x
  2. Step 2: Convert to fraction form
    2,611.17/3,913.99 = 1,880.35/x
  3. Step 3: Cross multiply
    2,611.17x = 3,913.99 × 1,880.35
  4. Step 4: Simplify right side
    2,611.17x = 7,359,656.61
  5. Step 5: Solve for x
    x = 7,359,656.61/2,611.17
  6. Step 6: Final answer
    x = 2,818.53

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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.