Home / 1,683.45-2,526.26-817.29

Finding the Fourth Proportional to 1,683.45, 2,526.26 and 817.29

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Solution

The fourth proportional to 1,683.45, 2,526.26 and 817.29 is: 1,226.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683.45 : 2,526.26 = 817.29 : x
  2. Step 2: Convert to fraction form
    1,683.45/2,526.26 = 817.29/x
  3. Step 3: Cross multiply
    1,683.45x = 2,526.26 × 817.29
  4. Step 4: Simplify right side
    1,683.45x = 2,064,693.35
  5. Step 5: Solve for x
    x = 2,064,693.35/1,683.45
  6. Step 6: Final answer
    x = 1,226.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.