Home / 4,667.72-7,002.95-1,380.90

Finding the Fourth Proportional to 4,667.72, 7,002.95 and 1,380.90

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Solution

The fourth proportional to 4,667.72, 7,002.95 and 1,380.90 is: 2,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,667.72 : 7,002.95 = 1,380.90 : x
  2. Step 2: Convert to fraction form
    4,667.72/7,002.95 = 1,380.90/x
  3. Step 3: Cross multiply
    4,667.72x = 7,002.95 × 1,380.90
  4. Step 4: Simplify right side
    4,667.72x = 9,670,373.66
  5. Step 5: Solve for x
    x = 9,670,373.66/4,667.72
  6. Step 6: Final answer
    x = 2,071.76

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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.