Home / 2,154.81-2,976.14-1,725.13

Finding the Fourth Proportional to 2,154.81, 2,976.14 and 1,725.13

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Solution

The fourth proportional to 2,154.81, 2,976.14 and 1,725.13 is: 2,382.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.81 : 2,976.14 = 1,725.13 : x
  2. Step 2: Convert to fraction form
    2,154.81/2,976.14 = 1,725.13/x
  3. Step 3: Cross multiply
    2,154.81x = 2,976.14 × 1,725.13
  4. Step 4: Simplify right side
    2,154.81x = 5,134,236.43
  5. Step 5: Solve for x
    x = 5,134,236.43/2,154.81
  6. Step 6: Final answer
    x = 2,382.69

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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.