Home / 5,519.04-7,614.34-3,128.66

Finding the Fourth Proportional to 5,519.04, 7,614.34 and 3,128.66

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Solution

The fourth proportional to 5,519.04, 7,614.34 and 3,128.66 is: 4,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.04 : 7,614.34 = 3,128.66 : x
  2. Step 2: Convert to fraction form
    5,519.04/7,614.34 = 3,128.66/x
  3. Step 3: Cross multiply
    5,519.04x = 7,614.34 × 3,128.66
  4. Step 4: Simplify right side
    5,519.04x = 23,822,663.64
  5. Step 5: Solve for x
    x = 23,822,663.64/5,519.04
  6. Step 6: Final answer
    x = 4,316.45

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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.