Home / 7,285.13-10,929.61-2,605.60

Finding the Fourth Proportional to 7,285.13, 10,929.61 and 2,605.60

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Solution

The fourth proportional to 7,285.13, 10,929.61 and 2,605.60 is: 3,909.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,285.13 : 10,929.61 = 2,605.60 : x
  2. Step 2: Convert to fraction form
    7,285.13/10,929.61 = 2,605.60/x
  3. Step 3: Cross multiply
    7,285.13x = 10,929.61 × 2,605.60
  4. Step 4: Simplify right side
    7,285.13x = 28,478,157.98
  5. Step 5: Solve for x
    x = 28,478,157.98/7,285.13
  6. Step 6: Final answer
    x = 3,909.08

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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.