Home / 1,666.26-2,297.70-1,431

Finding the Fourth Proportional to 1,666.26, 2,297.70 and 1,431

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Solution

The fourth proportional to 1,666.26, 2,297.70 and 1,431 is: 1,973.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.26 : 2,297.70 = 1,431 : x
  2. Step 2: Convert to fraction form
    1,666.26/2,297.70 = 1,431/x
  3. Step 3: Cross multiply
    1,666.26x = 2,297.70 × 1,431
  4. Step 4: Simplify right side
    1,666.26x = 3,288,008.70
  5. Step 5: Solve for x
    x = 3,288,008.70/1,666.26
  6. Step 6: Final answer
    x = 1,973.29

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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.