Home / 3,265.30-4,899.15-1,317.70

Finding the Fourth Proportional to 3,265.30, 4,899.15 and 1,317.70

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Solution

The fourth proportional to 3,265.30, 4,899.15 and 1,317.70 is: 1,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,265.30 : 4,899.15 = 1,317.70 : x
  2. Step 2: Convert to fraction form
    3,265.30/4,899.15 = 1,317.70/x
  3. Step 3: Cross multiply
    3,265.30x = 4,899.15 × 1,317.70
  4. Step 4: Simplify right side
    3,265.30x = 6,455,609.96
  5. Step 5: Solve for x
    x = 6,455,609.96/3,265.30
  6. Step 6: Final answer
    x = 1,977.03

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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.