Home / 2,908.58-4,358.70-1,812.30

Finding the Fourth Proportional to 2,908.58, 4,358.70 and 1,812.30

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Solution

The fourth proportional to 2,908.58, 4,358.70 and 1,812.30 is: 2,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.58 : 4,358.70 = 1,812.30 : x
  2. Step 2: Convert to fraction form
    2,908.58/4,358.70 = 1,812.30/x
  3. Step 3: Cross multiply
    2,908.58x = 4,358.70 × 1,812.30
  4. Step 4: Simplify right side
    2,908.58x = 7,899,272.01
  5. Step 5: Solve for x
    x = 7,899,272.01/2,908.58
  6. Step 6: Final answer
    x = 2,715.86

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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.