Home / 2,070.43-2,857.18-1,126.21

Finding the Fourth Proportional to 2,070.43, 2,857.18 and 1,126.21

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Solution

The fourth proportional to 2,070.43, 2,857.18 and 1,126.21 is: 1,554.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.43 : 2,857.18 = 1,126.21 : x
  2. Step 2: Convert to fraction form
    2,070.43/2,857.18 = 1,126.21/x
  3. Step 3: Cross multiply
    2,070.43x = 2,857.18 × 1,126.21
  4. Step 4: Simplify right side
    2,070.43x = 3,217,784.69
  5. Step 5: Solve for x
    x = 3,217,784.69/2,070.43
  6. Step 6: Final answer
    x = 1,554.16

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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.