Home / 2,611.35-3,916.98-636.99

Finding the Fourth Proportional to 2,611.35, 3,916.98 and 636.99

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Solution

The fourth proportional to 2,611.35, 3,916.98 and 636.99 is: 955.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.35 : 3,916.98 = 636.99 : x
  2. Step 2: Convert to fraction form
    2,611.35/3,916.98 = 636.99/x
  3. Step 3: Cross multiply
    2,611.35x = 3,916.98 × 636.99
  4. Step 4: Simplify right side
    2,611.35x = 2,495,077.09
  5. Step 5: Solve for x
    x = 2,495,077.09/2,611.35
  6. Step 6: Final answer
    x = 955.47

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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.