Home / 4,131.23-5,702.39-2,643.15

Finding the Fourth Proportional to 4,131.23, 5,702.39 and 2,643.15

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Solution

The fourth proportional to 4,131.23, 5,702.39 and 2,643.15 is: 3,648.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,131.23 : 5,702.39 = 2,643.15 : x
  2. Step 2: Convert to fraction form
    4,131.23/5,702.39 = 2,643.15/x
  3. Step 3: Cross multiply
    4,131.23x = 5,702.39 × 2,643.15
  4. Step 4: Simplify right side
    4,131.23x = 15,072,258.91
  5. Step 5: Solve for x
    x = 15,072,258.91/4,131.23
  6. Step 6: Final answer
    x = 3,648.38

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Half scale
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Double scale
Find fourth proportional to 4,132.23, 5,703.77 and 2,644.15
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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.