Home / 7,817.60-10,788.48-4,280.81

Finding the Fourth Proportional to 7,817.60, 10,788.48 and 4,280.81

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Solution

The fourth proportional to 7,817.60, 10,788.48 and 4,280.81 is: 5,907.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.60 : 10,788.48 = 4,280.81 : x
  2. Step 2: Convert to fraction form
    7,817.60/10,788.48 = 4,280.81/x
  3. Step 3: Cross multiply
    7,817.60x = 10,788.48 × 4,280.81
  4. Step 4: Simplify right side
    7,817.60x = 46,183,379.13
  5. Step 5: Solve for x
    x = 46,183,379.13/7,817.60
  6. Step 6: Final answer
    x = 5,907.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.