Home / 4,128.20-6,187.41-1,528.10

Finding the Fourth Proportional to 4,128.20, 6,187.41 and 1,528.10

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Solution

The fourth proportional to 4,128.20, 6,187.41 and 1,528.10 is: 2,290.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.20 : 6,187.41 = 1,528.10 : x
  2. Step 2: Convert to fraction form
    4,128.20/6,187.41 = 1,528.10/x
  3. Step 3: Cross multiply
    4,128.20x = 6,187.41 × 1,528.10
  4. Step 4: Simplify right side
    4,128.20x = 9,454,950.28
  5. Step 5: Solve for x
    x = 9,454,950.28/4,128.20
  6. Step 6: Final answer
    x = 2,290.34

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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.