Home / 5,303.31-7,318.80-2,945.67

Finding the Fourth Proportional to 5,303.31, 7,318.80 and 2,945.67

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Solution

The fourth proportional to 5,303.31, 7,318.80 and 2,945.67 is: 4,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.31 : 7,318.80 = 2,945.67 : x
  2. Step 2: Convert to fraction form
    5,303.31/7,318.80 = 2,945.67/x
  3. Step 3: Cross multiply
    5,303.31x = 7,318.80 × 2,945.67
  4. Step 4: Simplify right side
    5,303.31x = 21,558,769.60
  5. Step 5: Solve for x
    x = 21,558,769.60/5,303.31
  6. Step 6: Final answer
    x = 4,065.15

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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.