Home / 4,327.60-6,491.63-1,405.69

Finding the Fourth Proportional to 4,327.60, 6,491.63 and 1,405.69

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Solution

The fourth proportional to 4,327.60, 6,491.63 and 1,405.69 is: 2,108.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,327.60 : 6,491.63 = 1,405.69 : x
  2. Step 2: Convert to fraction form
    4,327.60/6,491.63 = 1,405.69/x
  3. Step 3: Cross multiply
    4,327.60x = 6,491.63 × 1,405.69
  4. Step 4: Simplify right side
    4,327.60x = 9,125,219.37
  5. Step 5: Solve for x
    x = 9,125,219.37/4,327.60
  6. Step 6: Final answer
    x = 2,108.61

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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.