Home / 2,070.24-3,107.79-1,205.16

Finding the Fourth Proportional to 2,070.24, 3,107.79 and 1,205.16

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Solution

The fourth proportional to 2,070.24, 3,107.79 and 1,205.16 is: 1,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.24 : 3,107.79 = 1,205.16 : x
  2. Step 2: Convert to fraction form
    2,070.24/3,107.79 = 1,205.16/x
  3. Step 3: Cross multiply
    2,070.24x = 3,107.79 × 1,205.16
  4. Step 4: Simplify right side
    2,070.24x = 3,745,384.20
  5. Step 5: Solve for x
    x = 3,745,384.20/2,070.24
  6. Step 6: Final answer
    x = 1,809.15

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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.