Home / 4,815.12-7,223.20-1,528.14

Finding the Fourth Proportional to 4,815.12, 7,223.20 and 1,528.14

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Solution

The fourth proportional to 4,815.12, 7,223.20 and 1,528.14 is: 2,292.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.12 : 7,223.20 = 1,528.14 : x
  2. Step 2: Convert to fraction form
    4,815.12/7,223.20 = 1,528.14/x
  3. Step 3: Cross multiply
    4,815.12x = 7,223.20 × 1,528.14
  4. Step 4: Simplify right side
    4,815.12x = 11,038,060.85
  5. Step 5: Solve for x
    x = 11,038,060.85/4,815.12
  6. Step 6: Final answer
    x = 2,292.38

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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.