Home / 5,382.60-8,071.20-2,457.60

Finding the Fourth Proportional to 5,382.60, 8,071.20 and 2,457.60

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Solution

The fourth proportional to 5,382.60, 8,071.20 and 2,457.60 is: 3,685.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.60 : 8,071.20 = 2,457.60 : x
  2. Step 2: Convert to fraction form
    5,382.60/8,071.20 = 2,457.60/x
  3. Step 3: Cross multiply
    5,382.60x = 8,071.20 × 2,457.60
  4. Step 4: Simplify right side
    5,382.60x = 19,835,781.12
  5. Step 5: Solve for x
    x = 19,835,781.12/5,382.60
  6. Step 6: Final answer
    x = 3,685.17

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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.