Home / 5,202.20-7,803.30-1,915.40

Finding the Fourth Proportional to 5,202.20, 7,803.30 and 1,915.40

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Solution

The fourth proportional to 5,202.20, 7,803.30 and 1,915.40 is: 2,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,202.20 : 7,803.30 = 1,915.40 : x
  2. Step 2: Convert to fraction form
    5,202.20/7,803.30 = 1,915.40/x
  3. Step 3: Cross multiply
    5,202.20x = 7,803.30 × 1,915.40
  4. Step 4: Simplify right side
    5,202.20x = 14,946,440.82
  5. Step 5: Solve for x
    x = 14,946,440.82/5,202.20
  6. Step 6: Final answer
    x = 2,873.10

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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.