Home / 5,136.27-7,088.04-2,778.45

Finding the Fourth Proportional to 5,136.27, 7,088.04 and 2,778.45

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Solution

The fourth proportional to 5,136.27, 7,088.04 and 2,778.45 is: 3,834.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.27 : 7,088.04 = 2,778.45 : x
  2. Step 2: Convert to fraction form
    5,136.27/7,088.04 = 2,778.45/x
  3. Step 3: Cross multiply
    5,136.27x = 7,088.04 × 2,778.45
  4. Step 4: Simplify right side
    5,136.27x = 19,693,764.74
  5. Step 5: Solve for x
    x = 19,693,764.74/5,136.27
  6. Step 6: Final answer
    x = 3,834.25

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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.