Home / 4,278.60-5,898.90-3,140.67

Finding the Fourth Proportional to 4,278.60, 5,898.90 and 3,140.67

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Solution

The fourth proportional to 4,278.60, 5,898.90 and 3,140.67 is: 4,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.60 : 5,898.90 = 3,140.67 : x
  2. Step 2: Convert to fraction form
    4,278.60/5,898.90 = 3,140.67/x
  3. Step 3: Cross multiply
    4,278.60x = 5,898.90 × 3,140.67
  4. Step 4: Simplify right side
    4,278.60x = 18,526,523.33
  5. Step 5: Solve for x
    x = 18,526,523.33/4,278.60
  6. Step 6: Final answer
    x = 4,330.05

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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.