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Finding the Fourth Proportional to 5,580.81, 7,701.03 and 4,011.39

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Solution

The fourth proportional to 5,580.81, 7,701.03 and 4,011.39 is: 5,535.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.81 : 7,701.03 = 4,011.39 : x
  2. Step 2: Convert to fraction form
    5,580.81/7,701.03 = 4,011.39/x
  3. Step 3: Cross multiply
    5,580.81x = 7,701.03 × 4,011.39
  4. Step 4: Simplify right side
    5,580.81x = 30,891,834.73
  5. Step 5: Solve for x
    x = 30,891,834.73/5,580.81
  6. Step 6: Final answer
    x = 5,535.37

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Double scale
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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.