Home / 2,319.59-3,478.74-1,086.35

Finding the Fourth Proportional to 2,319.59, 3,478.74 and 1,086.35

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Solution

The fourth proportional to 2,319.59, 3,478.74 and 1,086.35 is: 1,629.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.59 : 3,478.74 = 1,086.35 : x
  2. Step 2: Convert to fraction form
    2,319.59/3,478.74 = 1,086.35/x
  3. Step 3: Cross multiply
    2,319.59x = 3,478.74 × 1,086.35
  4. Step 4: Simplify right side
    2,319.59x = 3,779,129.20
  5. Step 5: Solve for x
    x = 3,779,129.20/2,319.59
  6. Step 6: Final answer
    x = 1,629.22

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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.