Home / 4,128.57-6,192.05-1,206.16

Finding the Fourth Proportional to 4,128.57, 6,192.05 and 1,206.16

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Solution

The fourth proportional to 4,128.57, 6,192.05 and 1,206.16 is: 1,809.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.57 : 6,192.05 = 1,206.16 : x
  2. Step 2: Convert to fraction form
    4,128.57/6,192.05 = 1,206.16/x
  3. Step 3: Cross multiply
    4,128.57x = 6,192.05 × 1,206.16
  4. Step 4: Simplify right side
    4,128.57x = 7,468,581.52
  5. Step 5: Solve for x
    x = 7,468,581.52/4,128.57
  6. Step 6: Final answer
    x = 1,809.00

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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.