Home / 2,415.04-3,619.20-1,317.12

Finding the Fourth Proportional to 2,415.04, 3,619.20 and 1,317.12

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Solution

The fourth proportional to 2,415.04, 3,619.20 and 1,317.12 is: 1,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.04 : 3,619.20 = 1,317.12 : x
  2. Step 2: Convert to fraction form
    2,415.04/3,619.20 = 1,317.12/x
  3. Step 3: Cross multiply
    2,415.04x = 3,619.20 × 1,317.12
  4. Step 4: Simplify right side
    2,415.04x = 4,766,920.70
  5. Step 5: Solve for x
    x = 4,766,920.70/2,415.04
  6. Step 6: Final answer
    x = 1,973.85

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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.