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Finding the Fourth Proportional to 4,510, 6,223.80 and 2,940.76

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Solution

The fourth proportional to 4,510, 6,223.80 and 2,940.76 is: 4,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,510 : 6,223.80 = 2,940.76 : x
  2. Step 2: Convert to fraction form
    4,510/6,223.80 = 2,940.76/x
  3. Step 3: Cross multiply
    4,510x = 6,223.80 × 2,940.76
  4. Step 4: Simplify right side
    4,510x = 18,302,702.09
  5. Step 5: Solve for x
    x = 18,302,702.09/4,510
  6. Step 6: Final answer
    x = 4,058.25

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Double scale
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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.