Home / 2,746.10-4,120.94-1,187.63

Finding the Fourth Proportional to 2,746.10, 4,120.94 and 1,187.63

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Solution

The fourth proportional to 2,746.10, 4,120.94 and 1,187.63 is: 1,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.10 : 4,120.94 = 1,187.63 : x
  2. Step 2: Convert to fraction form
    2,746.10/4,120.94 = 1,187.63/x
  3. Step 3: Cross multiply
    2,746.10x = 4,120.94 × 1,187.63
  4. Step 4: Simplify right side
    2,746.10x = 4,894,149.79
  5. Step 5: Solve for x
    x = 4,894,149.79/2,746.10
  6. Step 6: Final answer
    x = 1,782.22

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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.