Home / 3,019.90-4,167.72-1,693.86

Finding the Fourth Proportional to 3,019.90, 4,167.72 and 1,693.86

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Solution

The fourth proportional to 3,019.90, 4,167.72 and 1,693.86 is: 2,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.90 : 4,167.72 = 1,693.86 : x
  2. Step 2: Convert to fraction form
    3,019.90/4,167.72 = 1,693.86/x
  3. Step 3: Cross multiply
    3,019.90x = 4,167.72 × 1,693.86
  4. Step 4: Simplify right side
    3,019.90x = 7,059,534.20
  5. Step 5: Solve for x
    x = 7,059,534.20/3,019.90
  6. Step 6: Final answer
    x = 2,337.67

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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.