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Finding the Fourth Proportional to 5,698, 7,862.29 and 3,806.55

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Solution

The fourth proportional to 5,698, 7,862.29 and 3,806.55 is: 5,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,698 : 7,862.29 = 3,806.55 : x
  2. Step 2: Convert to fraction form
    5,698/7,862.29 = 3,806.55/x
  3. Step 3: Cross multiply
    5,698x = 7,862.29 × 3,806.55
  4. Step 4: Simplify right side
    5,698x = 29,928,200.00
  5. Step 5: Solve for x
    x = 29,928,200.00/5,698
  6. Step 6: Final answer
    x = 5,252.40

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1.5x scale

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.