Home / 2,638,916.28-3,641,689.26-1,431,666.36

Finding the Fourth Proportional to 2,638,916.28, 3,641,689.26 and 1,431,666.36

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Solution

The fourth proportional to 2,638,916.28, 3,641,689.26 and 1,431,666.36 is: 1,975,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,916.28 : 3,641,689.26 = 1,431,666.36 : x
  2. Step 2: Convert to fraction form
    2,638,916.28/3,641,689.26 = 1,431,666.36/x
  3. Step 3: Cross multiply
    2,638,916.28x = 3,641,689.26 × 1,431,666.36
  4. Step 4: Simplify right side
    2,638,916.28x = 5,213,684,007,115.29
  5. Step 5: Solve for x
    x = 5,213,684,007,115.29/2,638,916.28
  6. Step 6: Final answer
    x = 1,975,691.33

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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.