Home / 6,988.34-10,487.78-3,702.17

Finding the Fourth Proportional to 6,988.34, 10,487.78 and 3,702.17

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Solution

The fourth proportional to 6,988.34, 10,487.78 and 3,702.17 is: 5,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.34 : 10,487.78 = 3,702.17 : x
  2. Step 2: Convert to fraction form
    6,988.34/10,487.78 = 3,702.17/x
  3. Step 3: Cross multiply
    6,988.34x = 10,487.78 × 3,702.17
  4. Step 4: Simplify right side
    6,988.34x = 38,827,566.07
  5. Step 5: Solve for x
    x = 38,827,566.07/6,988.34
  6. Step 6: Final answer
    x = 5,556.05

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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.