Home / 2,905.18-4,358.76-1,260.88

Finding the Fourth Proportional to 2,905.18, 4,358.76 and 1,260.88

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Solution

The fourth proportional to 2,905.18, 4,358.76 and 1,260.88 is: 1,891.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.18 : 4,358.76 = 1,260.88 : x
  2. Step 2: Convert to fraction form
    2,905.18/4,358.76 = 1,260.88/x
  3. Step 3: Cross multiply
    2,905.18x = 4,358.76 × 1,260.88
  4. Step 4: Simplify right side
    2,905.18x = 5,495,873.31
  5. Step 5: Solve for x
    x = 5,495,873.31/2,905.18
  6. Step 6: Final answer
    x = 1,891.75

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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.