Home / 7,318.40-10,977.56-2,935.80

Finding the Fourth Proportional to 7,318.40, 10,977.56 and 2,935.80

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Solution

The fourth proportional to 7,318.40, 10,977.56 and 2,935.80 is: 4,403.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.40 : 10,977.56 = 2,935.80 : x
  2. Step 2: Convert to fraction form
    7,318.40/10,977.56 = 2,935.80/x
  3. Step 3: Cross multiply
    7,318.40x = 10,977.56 × 2,935.80
  4. Step 4: Simplify right side
    7,318.40x = 32,227,920.65
  5. Step 5: Solve for x
    x = 32,227,920.65/7,318.40
  6. Step 6: Final answer
    x = 4,403.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.