Home / 2,913,981.85-4,021,195.61-1,607,285.66

Finding the Fourth Proportional to 2,913,981.85, 4,021,195.61 and 1,607,285.66

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Solution

The fourth proportional to 2,913,981.85, 4,021,195.61 and 1,607,285.66 is: 2,217,999.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913,981.85 : 4,021,195.61 = 1,607,285.66 : x
  2. Step 2: Convert to fraction form
    2,913,981.85/4,021,195.61 = 1,607,285.66/x
  3. Step 3: Cross multiply
    2,913,981.85x = 4,021,195.61 × 1,607,285.66
  4. Step 4: Simplify right side
    2,913,981.85x = 6,463,210,031,971.53
  5. Step 5: Solve for x
    x = 6,463,210,031,971.53/2,913,981.85
  6. Step 6: Final answer
    x = 2,217,999.42

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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.