Home / 2,319.41-3,478.64-1,086.48

Finding the Fourth Proportional to 2,319.41, 3,478.64 and 1,086.48

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Solution

The fourth proportional to 2,319.41, 3,478.64 and 1,086.48 is: 1,629.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.41 : 3,478.64 = 1,086.48 : x
  2. Step 2: Convert to fraction form
    2,319.41/3,478.64 = 1,086.48/x
  3. Step 3: Cross multiply
    2,319.41x = 3,478.64 × 1,086.48
  4. Step 4: Simplify right side
    2,319.41x = 3,779,467.35
  5. Step 5: Solve for x
    x = 3,779,467.35/2,319.41
  6. Step 6: Final answer
    x = 1,629.50

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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.