Home / 6,412.40-9,619.48-2,712.32

Finding the Fourth Proportional to 6,412.40, 9,619.48 and 2,712.32

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Solution

The fourth proportional to 6,412.40, 9,619.48 and 2,712.32 is: 4,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.40 : 9,619.48 = 2,712.32 : x
  2. Step 2: Convert to fraction form
    6,412.40/9,619.48 = 2,712.32/x
  3. Step 3: Cross multiply
    6,412.40x = 9,619.48 × 2,712.32
  4. Step 4: Simplify right side
    6,412.40x = 26,091,107.99
  5. Step 5: Solve for x
    x = 26,091,107.99/6,412.40
  6. Step 6: Final answer
    x = 4,068.85

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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.