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Finding the Fourth Proportional to 1,713.66, 2,364.80 and 957.47

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Solution

The fourth proportional to 1,713.66, 2,364.80 and 957.47 is: 1,321.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.66 : 2,364.80 = 957.47 : x
  2. Step 2: Convert to fraction form
    1,713.66/2,364.80 = 957.47/x
  3. Step 3: Cross multiply
    1,713.66x = 2,364.80 × 957.47
  4. Step 4: Simplify right side
    1,713.66x = 2,264,208.44
  5. Step 5: Solve for x
    x = 2,264,208.44/1,713.66
  6. Step 6: Final answer
    x = 1,321.27

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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.