Home / 2,688.23-3,708.43-2,333.67

Finding the Fourth Proportional to 2,688.23, 3,708.43 and 2,333.67

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Solution

The fourth proportional to 2,688.23, 3,708.43 and 2,333.67 is: 3,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.23 : 3,708.43 = 2,333.67 : x
  2. Step 2: Convert to fraction form
    2,688.23/3,708.43 = 2,333.67/x
  3. Step 3: Cross multiply
    2,688.23x = 3,708.43 × 2,333.67
  4. Step 4: Simplify right side
    2,688.23x = 8,654,240.17
  5. Step 5: Solve for x
    x = 8,654,240.17/2,688.23
  6. Step 6: Final answer
    x = 3,219.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.