Home / 2,021,384.70-2,789,749.35-1,161,981.18

Finding the Fourth Proportional to 2,021,384.70, 2,789,749.35 and 1,161,981.18

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Solution

The fourth proportional to 2,021,384.70, 2,789,749.35 and 1,161,981.18 is: 1,603,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021,384.70 : 2,789,749.35 = 1,161,981.18 : x
  2. Step 2: Convert to fraction form
    2,021,384.70/2,789,749.35 = 1,161,981.18/x
  3. Step 3: Cross multiply
    2,021,384.70x = 2,789,749.35 × 1,161,981.18
  4. Step 4: Simplify right side
    2,021,384.70x = 3,241,636,241,617.23
  5. Step 5: Solve for x
    x = 3,241,636,241,617.23/2,021,384.70
  6. Step 6: Final answer
    x = 1,603,671.11

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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.