Home / 2,778.08-3,832.65-1,783.19

Finding the Fourth Proportional to 2,778.08, 3,832.65 and 1,783.19

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Solution

The fourth proportional to 2,778.08, 3,832.65 and 1,783.19 is: 2,460.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.08 : 3,832.65 = 1,783.19 : x
  2. Step 2: Convert to fraction form
    2,778.08/3,832.65 = 1,783.19/x
  3. Step 3: Cross multiply
    2,778.08x = 3,832.65 × 1,783.19
  4. Step 4: Simplify right side
    2,778.08x = 6,834,352.74
  5. Step 5: Solve for x
    x = 6,834,352.74/2,778.08
  6. Step 6: Final answer
    x = 2,460.10

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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.