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Finding the Fourth Proportional to 5,491.55, 7,578.33 and 2,973.68

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Solution

The fourth proportional to 5,491.55, 7,578.33 and 2,973.68 is: 4,103.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.55 : 7,578.33 = 2,973.68 : x
  2. Step 2: Convert to fraction form
    5,491.55/7,578.33 = 2,973.68/x
  3. Step 3: Cross multiply
    5,491.55x = 7,578.33 × 2,973.68
  4. Step 4: Simplify right side
    5,491.55x = 22,535,490.46
  5. Step 5: Solve for x
    x = 22,535,490.46/5,491.55
  6. Step 6: Final answer
    x = 4,103.67

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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.