Home / 3,870,902.89-5,341,866.75-2,128,684.62

Finding the Fourth Proportional to 3,870,902.89, 5,341,866.75 and 2,128,684.62

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Solution

The fourth proportional to 3,870,902.89, 5,341,866.75 and 2,128,684.62 is: 2,937,596.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,902.89 : 5,341,866.75 = 2,128,684.62 : x
  2. Step 2: Convert to fraction form
    3,870,902.89/5,341,866.75 = 2,128,684.62/x
  3. Step 3: Cross multiply
    3,870,902.89x = 5,341,866.75 × 2,128,684.62
  4. Step 4: Simplify right side
    3,870,902.89x = 11,371,149,592,814.38
  5. Step 5: Solve for x
    x = 11,371,149,592,814.38/3,870,902.89
  6. Step 6: Final answer
    x = 2,937,596.19

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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.