Home / 4,459.24-6,690.20-1,339.28

Finding the Fourth Proportional to 4,459.24, 6,690.20 and 1,339.28

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Solution

The fourth proportional to 4,459.24, 6,690.20 and 1,339.28 is: 2,009.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,459.24 : 6,690.20 = 1,339.28 : x
  2. Step 2: Convert to fraction form
    4,459.24/6,690.20 = 1,339.28/x
  3. Step 3: Cross multiply
    4,459.24x = 6,690.20 × 1,339.28
  4. Step 4: Simplify right side
    4,459.24x = 8,960,051.06
  5. Step 5: Solve for x
    x = 8,960,051.06/4,459.24
  6. Step 6: Final answer
    x = 2,009.32

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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.