Home / 2,688.35-3,710.82-1,626.71

Finding the Fourth Proportional to 2,688.35, 3,710.82 and 1,626.71

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Solution

The fourth proportional to 2,688.35, 3,710.82 and 1,626.71 is: 2,245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.35 : 3,710.82 = 1,626.71 : x
  2. Step 2: Convert to fraction form
    2,688.35/3,710.82 = 1,626.71/x
  3. Step 3: Cross multiply
    2,688.35x = 3,710.82 × 1,626.71
  4. Step 4: Simplify right side
    2,688.35x = 6,036,409.45
  5. Step 5: Solve for x
    x = 6,036,409.45/2,688.35
  6. Step 6: Final answer
    x = 2,245.40

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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.