Home / 4,085.20-5,638.60-2,317.86

Finding the Fourth Proportional to 4,085.20, 5,638.60 and 2,317.86

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Solution

The fourth proportional to 4,085.20, 5,638.60 and 2,317.86 is: 3,199.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.20 : 5,638.60 = 2,317.86 : x
  2. Step 2: Convert to fraction form
    4,085.20/5,638.60 = 2,317.86/x
  3. Step 3: Cross multiply
    4,085.20x = 5,638.60 × 2,317.86
  4. Step 4: Simplify right side
    4,085.20x = 13,069,485.40
  5. Step 5: Solve for x
    x = 13,069,485.40/4,085.20
  6. Step 6: Final answer
    x = 3,199.23

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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.