Home / 4,128.88-6,192.24-1,530.40

Finding the Fourth Proportional to 4,128.88, 6,192.24 and 1,530.40

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Solution

The fourth proportional to 4,128.88, 6,192.24 and 1,530.40 is: 2,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.88 : 6,192.24 = 1,530.40 : x
  2. Step 2: Convert to fraction form
    4,128.88/6,192.24 = 1,530.40/x
  3. Step 3: Cross multiply
    4,128.88x = 6,192.24 × 1,530.40
  4. Step 4: Simplify right side
    4,128.88x = 9,476,604.10
  5. Step 5: Solve for x
    x = 9,476,604.10/4,128.88
  6. Step 6: Final answer
    x = 2,295.20

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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.