Home / 2,136.69-2,948.67-1,192.55

Finding the Fourth Proportional to 2,136.69, 2,948.67 and 1,192.55

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Solution

The fourth proportional to 2,136.69, 2,948.67 and 1,192.55 is: 1,645.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.69 : 2,948.67 = 1,192.55 : x
  2. Step 2: Convert to fraction form
    2,136.69/2,948.67 = 1,192.55/x
  3. Step 3: Cross multiply
    2,136.69x = 2,948.67 × 1,192.55
  4. Step 4: Simplify right side
    2,136.69x = 3,516,421.67
  5. Step 5: Solve for x
    x = 3,516,421.67/2,136.69
  6. Step 6: Final answer
    x = 1,645.73

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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.