Home / 7,915.30-10,922.77-4,330.17

Finding the Fourth Proportional to 7,915.30, 10,922.77 and 4,330.17

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Solution

The fourth proportional to 7,915.30, 10,922.77 and 4,330.17 is: 5,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.30 : 10,922.77 = 4,330.17 : x
  2. Step 2: Convert to fraction form
    7,915.30/10,922.77 = 4,330.17/x
  3. Step 3: Cross multiply
    7,915.30x = 10,922.77 × 4,330.17
  4. Step 4: Simplify right side
    7,915.30x = 47,297,450.97
  5. Step 5: Solve for x
    x = 47,297,450.97/7,915.30
  6. Step 6: Final answer
    x = 5,975.45

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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.