Home / 5,719.60-8,580.21-2,798.07

Finding the Fourth Proportional to 5,719.60, 8,580.21 and 2,798.07

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Solution

The fourth proportional to 5,719.60, 8,580.21 and 2,798.07 is: 4,197.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.60 : 8,580.21 = 2,798.07 : x
  2. Step 2: Convert to fraction form
    5,719.60/8,580.21 = 2,798.07/x
  3. Step 3: Cross multiply
    5,719.60x = 8,580.21 × 2,798.07
  4. Step 4: Simplify right side
    5,719.60x = 24,008,028.19
  5. Step 5: Solve for x
    x = 24,008,028.19/5,719.60
  6. Step 6: Final answer
    x = 4,197.50

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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.