Home / 7,136.89-10,702.67-2,455.57

Finding the Fourth Proportional to 7,136.89, 10,702.67 and 2,455.57

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Solution

The fourth proportional to 7,136.89, 10,702.67 and 2,455.57 is: 3,682.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.89 : 10,702.67 = 2,455.57 : x
  2. Step 2: Convert to fraction form
    7,136.89/10,702.67 = 2,455.57/x
  3. Step 3: Cross multiply
    7,136.89x = 10,702.67 × 2,455.57
  4. Step 4: Simplify right side
    7,136.89x = 26,281,143.09
  5. Step 5: Solve for x
    x = 26,281,143.09/7,136.89
  6. Step 6: Final answer
    x = 3,682.44

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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.