Home / 1,686.33-2,327.99-1,057.22

Finding the Fourth Proportional to 1,686.33, 2,327.99 and 1,057.22

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Solution

The fourth proportional to 1,686.33, 2,327.99 and 1,057.22 is: 1,459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.33 : 2,327.99 = 1,057.22 : x
  2. Step 2: Convert to fraction form
    1,686.33/2,327.99 = 1,057.22/x
  3. Step 3: Cross multiply
    1,686.33x = 2,327.99 × 1,057.22
  4. Step 4: Simplify right side
    1,686.33x = 2,461,180.66
  5. Step 5: Solve for x
    x = 2,461,180.66/1,686.33
  6. Step 6: Final answer
    x = 1,459.49

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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.