Home / 4,780.93-7,171.21-1,318.09

Finding the Fourth Proportional to 4,780.93, 7,171.21 and 1,318.09

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Solution

The fourth proportional to 4,780.93, 7,171.21 and 1,318.09 is: 1,977.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.93 : 7,171.21 = 1,318.09 : x
  2. Step 2: Convert to fraction form
    4,780.93/7,171.21 = 1,318.09/x
  3. Step 3: Cross multiply
    4,780.93x = 7,171.21 × 1,318.09
  4. Step 4: Simplify right side
    4,780.93x = 9,452,300.19
  5. Step 5: Solve for x
    x = 9,452,300.19/4,780.93
  6. Step 6: Final answer
    x = 1,977.08

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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.