Home / 5,108.80-7,652.40-4,136.80

Finding the Fourth Proportional to 5,108.80, 7,652.40 and 4,136.80

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Solution

The fourth proportional to 5,108.80, 7,652.40 and 4,136.80 is: 6,196.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.80 : 7,652.40 = 4,136.80 : x
  2. Step 2: Convert to fraction form
    5,108.80/7,652.40 = 4,136.80/x
  3. Step 3: Cross multiply
    5,108.80x = 7,652.40 × 4,136.80
  4. Step 4: Simplify right side
    5,108.80x = 31,656,448.32
  5. Step 5: Solve for x
    x = 31,656,448.32/5,108.80
  6. Step 6: Final answer
    x = 6,196.45

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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.