Home / 2,783.08-4,170.30-1,138.24

Finding the Fourth Proportional to 2,783.08, 4,170.30 and 1,138.24

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Solution

The fourth proportional to 2,783.08, 4,170.30 and 1,138.24 is: 1,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.08 : 4,170.30 = 1,138.24 : x
  2. Step 2: Convert to fraction form
    2,783.08/4,170.30 = 1,138.24/x
  3. Step 3: Cross multiply
    2,783.08x = 4,170.30 × 1,138.24
  4. Step 4: Simplify right side
    2,783.08x = 4,746,802.27
  5. Step 5: Solve for x
    x = 4,746,802.27/2,783.08
  6. Step 6: Final answer
    x = 1,705.59

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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.