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Finding the Fourth Proportional to 5,660.81, 7,811.93 and 3,303.11

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Solution

The fourth proportional to 5,660.81, 7,811.93 and 3,303.11 is: 4,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.81 : 7,811.93 = 3,303.11 : x
  2. Step 2: Convert to fraction form
    5,660.81/7,811.93 = 3,303.11/x
  3. Step 3: Cross multiply
    5,660.81x = 7,811.93 × 3,303.11
  4. Step 4: Simplify right side
    5,660.81x = 25,803,633.30
  5. Step 5: Solve for x
    x = 25,803,633.30/5,660.81
  6. Step 6: Final answer
    x = 4,558.29

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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.