Home / 5,915.80-8,856.40-3,591.64

Finding the Fourth Proportional to 5,915.80, 8,856.40 and 3,591.64

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Solution

The fourth proportional to 5,915.80, 8,856.40 and 3,591.64 is: 5,376.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.80 : 8,856.40 = 3,591.64 : x
  2. Step 2: Convert to fraction form
    5,915.80/8,856.40 = 3,591.64/x
  3. Step 3: Cross multiply
    5,915.80x = 8,856.40 × 3,591.64
  4. Step 4: Simplify right side
    5,915.80x = 31,809,000.50
  5. Step 5: Solve for x
    x = 31,809,000.50/5,915.80
  6. Step 6: Final answer
    x = 5,376.96

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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.