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Finding the Fourth Proportional to 1,713.96, 2,569.86 and 848.21

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Solution

The fourth proportional to 1,713.96, 2,569.86 and 848.21 is: 1,271.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.96 : 2,569.86 = 848.21 : x
  2. Step 2: Convert to fraction form
    1,713.96/2,569.86 = 848.21/x
  3. Step 3: Cross multiply
    1,713.96x = 2,569.86 × 848.21
  4. Step 4: Simplify right side
    1,713.96x = 2,179,768.10
  5. Step 5: Solve for x
    x = 2,179,768.10/1,713.96
  6. Step 6: Final answer
    x = 1,271.77

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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.