Home / 6,460.16-8,915.04-4,220.66

Finding the Fourth Proportional to 6,460.16, 8,915.04 and 4,220.66

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Solution

The fourth proportional to 6,460.16, 8,915.04 and 4,220.66 is: 5,824.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,460.16 : 8,915.04 = 4,220.66 : x
  2. Step 2: Convert to fraction form
    6,460.16/8,915.04 = 4,220.66/x
  3. Step 3: Cross multiply
    6,460.16x = 8,915.04 × 4,220.66
  4. Step 4: Simplify right side
    6,460.16x = 37,627,352.73
  5. Step 5: Solve for x
    x = 37,627,352.73/6,460.16
  6. Step 6: Final answer
    x = 5,824.52

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Half scale
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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.