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Finding the Fourth Proportional to 1,739.74, 2,609.85 and 713.50

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Solution

The fourth proportional to 1,739.74, 2,609.85 and 713.50 is: 1,070.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.74 : 2,609.85 = 713.50 : x
  2. Step 2: Convert to fraction form
    1,739.74/2,609.85 = 713.50/x
  3. Step 3: Cross multiply
    1,739.74x = 2,609.85 × 713.50
  4. Step 4: Simplify right side
    1,739.74x = 1,862,127.98
  5. Step 5: Solve for x
    x = 1,862,127.98/1,739.74
  6. Step 6: Final answer
    x = 1,070.35

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1.5x scale

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.