Home / 2,312.16-3,468.42-668.67

Finding the Fourth Proportional to 2,312.16, 3,468.42 and 668.67

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Solution

The fourth proportional to 2,312.16, 3,468.42 and 668.67 is: 1,003.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.16 : 3,468.42 = 668.67 : x
  2. Step 2: Convert to fraction form
    2,312.16/3,468.42 = 668.67/x
  3. Step 3: Cross multiply
    2,312.16x = 3,468.42 × 668.67
  4. Step 4: Simplify right side
    2,312.16x = 2,319,228.40
  5. Step 5: Solve for x
    x = 2,319,228.40/2,312.16
  6. Step 6: Final answer
    x = 1,003.06

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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.