Home / 2,312.69-3,471.46-2,157.17

Finding the Fourth Proportional to 2,312.69, 3,471.46 and 2,157.17

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Solution

The fourth proportional to 2,312.69, 3,471.46 and 2,157.17 is: 3,238.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.69 : 3,471.46 = 2,157.17 : x
  2. Step 2: Convert to fraction form
    2,312.69/3,471.46 = 2,157.17/x
  3. Step 3: Cross multiply
    2,312.69x = 3,471.46 × 2,157.17
  4. Step 4: Simplify right side
    2,312.69x = 7,488,506.62
  5. Step 5: Solve for x
    x = 7,488,506.62/2,312.69
  6. Step 6: Final answer
    x = 3,238.01

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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.