Home / 7,136.94-9,851.26-4,152.20

Finding the Fourth Proportional to 7,136.94, 9,851.26 and 4,152.20

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Solution

The fourth proportional to 7,136.94, 9,851.26 and 4,152.20 is: 5,731.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.94 : 9,851.26 = 4,152.20 : x
  2. Step 2: Convert to fraction form
    7,136.94/9,851.26 = 4,152.20/x
  3. Step 3: Cross multiply
    7,136.94x = 9,851.26 × 4,152.20
  4. Step 4: Simplify right side
    7,136.94x = 40,904,401.77
  5. Step 5: Solve for x
    x = 40,904,401.77/7,136.94
  6. Step 6: Final answer
    x = 5,731.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.