Home / 2,280.14-3,147.37-1,336.23

Finding the Fourth Proportional to 2,280.14, 3,147.37 and 1,336.23

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Solution

The fourth proportional to 2,280.14, 3,147.37 and 1,336.23 is: 1,844.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.14 : 3,147.37 = 1,336.23 : x
  2. Step 2: Convert to fraction form
    2,280.14/3,147.37 = 1,336.23/x
  3. Step 3: Cross multiply
    2,280.14x = 3,147.37 × 1,336.23
  4. Step 4: Simplify right side
    2,280.14x = 4,205,606.87
  5. Step 5: Solve for x
    x = 4,205,606.87/2,280.14
  6. Step 6: Final answer
    x = 1,844.46

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Half scale
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Double scale
Find fourth proportional to 2,281.14, 3,148.75 and 1,337.23
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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.