Home / 7,915.85-10,924.90-4,558.12

Finding the Fourth Proportional to 7,915.85, 10,924.90 and 4,558.12

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Solution

The fourth proportional to 7,915.85, 10,924.90 and 4,558.12 is: 6,290.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.85 : 10,924.90 = 4,558.12 : x
  2. Step 2: Convert to fraction form
    7,915.85/10,924.90 = 4,558.12/x
  3. Step 3: Cross multiply
    7,915.85x = 10,924.90 × 4,558.12
  4. Step 4: Simplify right side
    7,915.85x = 49,797,040.75
  5. Step 5: Solve for x
    x = 49,797,040.75/7,915.85
  6. Step 6: Final answer
    x = 6,290.80

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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.