Home / 4,088.60-5,640.98-2,319.86

Finding the Fourth Proportional to 4,088.60, 5,640.98 and 2,319.86

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Solution

The fourth proportional to 4,088.60, 5,640.98 and 2,319.86 is: 3,200.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,088.60 : 5,640.98 = 2,319.86 : x
  2. Step 2: Convert to fraction form
    4,088.60/5,640.98 = 2,319.86/x
  3. Step 3: Cross multiply
    4,088.60x = 5,640.98 × 2,319.86
  4. Step 4: Simplify right side
    4,088.60x = 13,086,283.86
  5. Step 5: Solve for x
    x = 13,086,283.86/4,088.60
  6. Step 6: Final answer
    x = 3,200.68

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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.