Home / 4,659.69-6,990.55-2,686.60

Finding the Fourth Proportional to 4,659.69, 6,990.55 and 2,686.60

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Solution

The fourth proportional to 4,659.69, 6,990.55 and 2,686.60 is: 4,030.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,659.69 : 6,990.55 = 2,686.60 : x
  2. Step 2: Convert to fraction form
    4,659.69/6,990.55 = 2,686.60/x
  3. Step 3: Cross multiply
    4,659.69x = 6,990.55 × 2,686.60
  4. Step 4: Simplify right side
    4,659.69x = 18,780,818.35
  5. Step 5: Solve for x
    x = 18,780,818.35/4,659.69
  6. Step 6: Final answer
    x = 4,030.48

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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.