Home / 6,666.45-10,001.70-3,742.80

Finding the Fourth Proportional to 6,666.45, 10,001.70 and 3,742.80

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Solution

The fourth proportional to 6,666.45, 10,001.70 and 3,742.80 is: 5,615.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.45 : 10,001.70 = 3,742.80 : x
  2. Step 2: Convert to fraction form
    6,666.45/10,001.70 = 3,742.80/x
  3. Step 3: Cross multiply
    6,666.45x = 10,001.70 × 3,742.80
  4. Step 4: Simplify right side
    6,666.45x = 37,434,362.76
  5. Step 5: Solve for x
    x = 37,434,362.76/6,666.45
  6. Step 6: Final answer
    x = 5,615.34

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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.