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Finding the Fourth Proportional to 5,477.28, 7,558.56 and 2,993.28

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Solution

The fourth proportional to 5,477.28, 7,558.56 and 2,993.28 is: 4,130.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.28 : 7,558.56 = 2,993.28 : x
  2. Step 2: Convert to fraction form
    5,477.28/7,558.56 = 2,993.28/x
  3. Step 3: Cross multiply
    5,477.28x = 7,558.56 × 2,993.28
  4. Step 4: Simplify right side
    5,477.28x = 22,624,886.48
  5. Step 5: Solve for x
    x = 22,624,886.48/5,477.28
  6. Step 6: Final answer
    x = 4,130.68

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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.