Home / 2,070.20-2,857.14-1,284.37

Finding the Fourth Proportional to 2,070.20, 2,857.14 and 1,284.37

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Solution

The fourth proportional to 2,070.20, 2,857.14 and 1,284.37 is: 1,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.20 : 2,857.14 = 1,284.37 : x
  2. Step 2: Convert to fraction form
    2,070.20/2,857.14 = 1,284.37/x
  3. Step 3: Cross multiply
    2,070.20x = 2,857.14 × 1,284.37
  4. Step 4: Simplify right side
    2,070.20x = 3,669,617.76
  5. Step 5: Solve for x
    x = 3,669,617.76/2,070.20
  6. Step 6: Final answer
    x = 1,772.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.