Home / 5,136.30-7,702.65-2,670.30

Finding the Fourth Proportional to 5,136.30, 7,702.65 and 2,670.30

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Solution

The fourth proportional to 5,136.30, 7,702.65 and 2,670.30 is: 4,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.30 : 7,702.65 = 2,670.30 : x
  2. Step 2: Convert to fraction form
    5,136.30/7,702.65 = 2,670.30/x
  3. Step 3: Cross multiply
    5,136.30x = 7,702.65 × 2,670.30
  4. Step 4: Simplify right side
    5,136.30x = 20,568,386.30
  5. Step 5: Solve for x
    x = 20,568,386.30/5,136.30
  6. Step 6: Final answer
    x = 4,004.51

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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.