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Finding the Fourth Proportional to 4,609.47, 6,914.22 and 1,686.18

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Solution

The fourth proportional to 4,609.47, 6,914.22 and 1,686.18 is: 2,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.47 : 6,914.22 = 1,686.18 : x
  2. Step 2: Convert to fraction form
    4,609.47/6,914.22 = 1,686.18/x
  3. Step 3: Cross multiply
    4,609.47x = 6,914.22 × 1,686.18
  4. Step 4: Simplify right side
    4,609.47x = 11,658,619.48
  5. Step 5: Solve for x
    x = 11,658,619.48/4,609.47
  6. Step 6: Final answer
    x = 2,529.28

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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.