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Finding the Fourth Proportional to 6,607.82, 9,915.15 and 2,913.16

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Solution

The fourth proportional to 6,607.82, 9,915.15 and 2,913.16 is: 4,371.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607.82 : 9,915.15 = 2,913.16 : x
  2. Step 2: Convert to fraction form
    6,607.82/9,915.15 = 2,913.16/x
  3. Step 3: Cross multiply
    6,607.82x = 9,915.15 × 2,913.16
  4. Step 4: Simplify right side
    6,607.82x = 28,884,418.37
  5. Step 5: Solve for x
    x = 28,884,418.37/6,607.82
  6. Step 6: Final answer
    x = 4,371.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.