Home / 2,158,126-3,235,513.74-1,398,362.20

Finding the Fourth Proportional to 2,158,126, 3,235,513.74 and 1,398,362.20

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Solution

The fourth proportional to 2,158,126, 3,235,513.74 and 1,398,362.20 is: 2,096,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,126 : 3,235,513.74 = 1,398,362.20 : x
  2. Step 2: Convert to fraction form
    2,158,126/3,235,513.74 = 1,398,362.20/x
  3. Step 3: Cross multiply
    2,158,126x = 3,235,513.74 × 1,398,362.20
  4. Step 4: Simplify right side
    2,158,126x = 4,524,420,111,596.63
  5. Step 5: Solve for x
    x = 4,524,420,111,596.63/2,158,126
  6. Step 6: Final answer
    x = 2,096,457.81

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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.