Home / 4,128.16-6,192.36-1,206.52

Finding the Fourth Proportional to 4,128.16, 6,192.36 and 1,206.52

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Solution

The fourth proportional to 4,128.16, 6,192.36 and 1,206.52 is: 1,809.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.16 : 6,192.36 = 1,206.52 : x
  2. Step 2: Convert to fraction form
    4,128.16/6,192.36 = 1,206.52/x
  3. Step 3: Cross multiply
    4,128.16x = 6,192.36 × 1,206.52
  4. Step 4: Simplify right side
    4,128.16x = 7,471,206.19
  5. Step 5: Solve for x
    x = 7,471,206.19/4,128.16
  6. Step 6: Final answer
    x = 1,809.82

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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.