Home / 2,318.10-3,470.87-1,330.05

Finding the Fourth Proportional to 2,318.10, 3,470.87 and 1,330.05

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Solution

The fourth proportional to 2,318.10, 3,470.87 and 1,330.05 is: 1,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.10 : 3,470.87 = 1,330.05 : x
  2. Step 2: Convert to fraction form
    2,318.10/3,470.87 = 1,330.05/x
  3. Step 3: Cross multiply
    2,318.10x = 3,470.87 × 1,330.05
  4. Step 4: Simplify right side
    2,318.10x = 4,616,419.98
  5. Step 5: Solve for x
    x = 4,616,419.98/2,318.10
  6. Step 6: Final answer
    x = 1,991.47

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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.