Home / 7,578.13-10,457.54-4,220.87

Finding the Fourth Proportional to 7,578.13, 10,457.54 and 4,220.87

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Solution

The fourth proportional to 7,578.13, 10,457.54 and 4,220.87 is: 5,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.13 : 10,457.54 = 4,220.87 : x
  2. Step 2: Convert to fraction form
    7,578.13/10,457.54 = 4,220.87/x
  3. Step 3: Cross multiply
    7,578.13x = 10,457.54 × 4,220.87
  4. Step 4: Simplify right side
    7,578.13x = 44,139,937.73
  5. Step 5: Solve for x
    x = 44,139,937.73/7,578.13
  6. Step 6: Final answer
    x = 5,824.65

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