Home / 7,318.10-10,977.15-2,938.70

Finding the Fourth Proportional to 7,318.10, 10,977.15 and 2,938.70

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Solution

The fourth proportional to 7,318.10, 10,977.15 and 2,938.70 is: 4,408.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.10 : 10,977.15 = 2,938.70 : x
  2. Step 2: Convert to fraction form
    7,318.10/10,977.15 = 2,938.70/x
  3. Step 3: Cross multiply
    7,318.10x = 10,977.15 × 2,938.70
  4. Step 4: Simplify right side
    7,318.10x = 32,258,550.71
  5. Step 5: Solve for x
    x = 32,258,550.71/7,318.10
  6. Step 6: Final answer
    x = 4,408.05

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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.