Home / 1,646.94-2,271.78-1,057.26

Finding the Fourth Proportional to 1,646.94, 2,271.78 and 1,057.26

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Solution

The fourth proportional to 1,646.94, 2,271.78 and 1,057.26 is: 1,458.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.94 : 2,271.78 = 1,057.26 : x
  2. Step 2: Convert to fraction form
    1,646.94/2,271.78 = 1,057.26/x
  3. Step 3: Cross multiply
    1,646.94x = 2,271.78 × 1,057.26
  4. Step 4: Simplify right side
    1,646.94x = 2,401,862.12
  5. Step 5: Solve for x
    x = 2,401,862.12/1,646.94
  6. Step 6: Final answer
    x = 1,458.38

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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.