Home / 4,087.82-5,642.24-3,423.62

Finding the Fourth Proportional to 4,087.82, 5,642.24 and 3,423.62

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Solution

The fourth proportional to 4,087.82, 5,642.24 and 3,423.62 is: 4,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.82 : 5,642.24 = 3,423.62 : x
  2. Step 2: Convert to fraction form
    4,087.82/5,642.24 = 3,423.62/x
  3. Step 3: Cross multiply
    4,087.82x = 5,642.24 × 3,423.62
  4. Step 4: Simplify right side
    4,087.82x = 19,316,840.38
  5. Step 5: Solve for x
    x = 19,316,840.38/4,087.82
  6. Step 6: Final answer
    x = 4,725.47

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Half scale
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Double scale
Find fourth proportional to 4,088.82, 5,643.62 and 3,424.62
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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.