Home / 7,910.30-10,915.87-4,325.17

Finding the Fourth Proportional to 7,910.30, 10,915.87 and 4,325.17

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Solution

The fourth proportional to 7,910.30, 10,915.87 and 4,325.17 is: 5,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.30 : 10,915.87 = 4,325.17 : x
  2. Step 2: Convert to fraction form
    7,910.30/10,915.87 = 4,325.17/x
  3. Step 3: Cross multiply
    7,910.30x = 10,915.87 × 4,325.17
  4. Step 4: Simplify right side
    7,910.30x = 47,212,938.87
  5. Step 5: Solve for x
    x = 47,212,938.87/7,910.30
  6. Step 6: Final answer
    x = 5,968.54

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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.