Home / 2,111,372.36-2,916,114.92-1,389,442.75

Finding the Fourth Proportional to 2,111,372.36, 2,916,114.92 and 1,389,442.75

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Solution

The fourth proportional to 2,111,372.36, 2,916,114.92 and 1,389,442.75 is: 1,919,024.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111,372.36 : 2,916,114.92 = 1,389,442.75 : x
  2. Step 2: Convert to fraction form
    2,111,372.36/2,916,114.92 = 1,389,442.75/x
  3. Step 3: Cross multiply
    2,111,372.36x = 2,916,114.92 × 1,389,442.75
  4. Step 4: Simplify right side
    2,111,372.36x = 4,051,774,724,733.74
  5. Step 5: Solve for x
    x = 4,051,774,724,733.74/2,111,372.36
  6. Step 6: Final answer
    x = 1,919,024.23

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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.