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Finding the Fourth Proportional to 1,713.96, 2,570.74 and 790.26

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Solution

The fourth proportional to 1,713.96, 2,570.74 and 790.26 is: 1,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.96 : 2,570.74 = 790.26 : x
  2. Step 2: Convert to fraction form
    1,713.96/2,570.74 = 790.26/x
  3. Step 3: Cross multiply
    1,713.96x = 2,570.74 × 790.26
  4. Step 4: Simplify right side
    1,713.96x = 2,031,541.38
  5. Step 5: Solve for x
    x = 2,031,541.38/1,713.96
  6. Step 6: Final answer
    x = 1,185.29

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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.