Home / 7,702.79-10,628.30-4,871.03

Finding the Fourth Proportional to 7,702.79, 10,628.30 and 4,871.03

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Solution

The fourth proportional to 7,702.79, 10,628.30 and 4,871.03 is: 6,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,702.79 : 10,628.30 = 4,871.03 : x
  2. Step 2: Convert to fraction form
    7,702.79/10,628.30 = 4,871.03/x
  3. Step 3: Cross multiply
    7,702.79x = 10,628.30 × 4,871.03
  4. Step 4: Simplify right side
    7,702.79x = 51,770,743.79
  5. Step 5: Solve for x
    x = 51,770,743.79/7,702.79
  6. Step 6: Final answer
    x = 6,721.04

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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.