Home / 6,666.63-9,988.99-2,281.69

Finding the Fourth Proportional to 6,666.63, 9,988.99 and 2,281.69

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Solution

The fourth proportional to 6,666.63, 9,988.99 and 2,281.69 is: 3,418.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.63 : 9,988.99 = 2,281.69 : x
  2. Step 2: Convert to fraction form
    6,666.63/9,988.99 = 2,281.69/x
  3. Step 3: Cross multiply
    6,666.63x = 9,988.99 × 2,281.69
  4. Step 4: Simplify right side
    6,666.63x = 22,791,778.59
  5. Step 5: Solve for x
    x = 22,791,778.59/6,666.63
  6. Step 6: Final answer
    x = 3,418.79

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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.