Home / 2,688.71-4,033.07-1,456.70

Finding the Fourth Proportional to 2,688.71, 4,033.07 and 1,456.70

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Solution

The fourth proportional to 2,688.71, 4,033.07 and 1,456.70 is: 2,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.71 : 4,033.07 = 1,456.70 : x
  2. Step 2: Convert to fraction form
    2,688.71/4,033.07 = 1,456.70/x
  3. Step 3: Cross multiply
    2,688.71x = 4,033.07 × 1,456.70
  4. Step 4: Simplify right side
    2,688.71x = 5,874,973.07
  5. Step 5: Solve for x
    x = 5,874,973.07/2,688.71
  6. Step 6: Final answer
    x = 2,185.05

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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.