Home / 7,810.05-11,715.10-2,545.53

Finding the Fourth Proportional to 7,810.05, 11,715.10 and 2,545.53

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Solution

The fourth proportional to 7,810.05, 11,715.10 and 2,545.53 is: 3,818.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.05 : 11,715.10 = 2,545.53 : x
  2. Step 2: Convert to fraction form
    7,810.05/11,715.10 = 2,545.53/x
  3. Step 3: Cross multiply
    7,810.05x = 11,715.10 × 2,545.53
  4. Step 4: Simplify right side
    7,810.05x = 29,821,088.21
  5. Step 5: Solve for x
    x = 29,821,088.21/7,810.05
  6. Step 6: Final answer
    x = 3,818.29

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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.