Home / 2,312.17-3,467.87-668.28

Finding the Fourth Proportional to 2,312.17, 3,467.87 and 668.28

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Solution

The fourth proportional to 2,312.17, 3,467.87 and 668.28 is: 1,002.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.17 : 3,467.87 = 668.28 : x
  2. Step 2: Convert to fraction form
    2,312.17/3,467.87 = 668.28/x
  3. Step 3: Cross multiply
    2,312.17x = 3,467.87 × 668.28
  4. Step 4: Simplify right side
    2,312.17x = 2,317,508.16
  5. Step 5: Solve for x
    x = 2,317,508.16/2,312.17
  6. Step 6: Final answer
    x = 1,002.31

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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.