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Finding the Fourth Proportional to 2,175.61, 3,263.72 and 714.91

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Solution

The fourth proportional to 2,175.61, 3,263.72 and 714.91 is: 1,072.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.61 : 3,263.72 = 714.91 : x
  2. Step 2: Convert to fraction form
    2,175.61/3,263.72 = 714.91/x
  3. Step 3: Cross multiply
    2,175.61x = 3,263.72 × 714.91
  4. Step 4: Simplify right side
    2,175.61x = 2,333,262.49
  5. Step 5: Solve for x
    x = 2,333,262.49/2,175.61
  6. Step 6: Final answer
    x = 1,072.46

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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.