Home / 2,820,720.78-3,892,622.67-1,531,571.76

Finding the Fourth Proportional to 2,820,720.78, 3,892,622.67 and 1,531,571.76

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Solution

The fourth proportional to 2,820,720.78, 3,892,622.67 and 1,531,571.76 is: 2,113,584.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820,720.78 : 3,892,622.67 = 1,531,571.76 : x
  2. Step 2: Convert to fraction form
    2,820,720.78/3,892,622.67 = 1,531,571.76/x
  3. Step 3: Cross multiply
    2,820,720.78x = 3,892,622.67 × 1,531,571.76
  4. Step 4: Simplify right side
    2,820,720.78x = 5,961,830,953,707.80
  5. Step 5: Solve for x
    x = 5,961,830,953,707.80/2,820,720.78
  6. Step 6: Final answer
    x = 2,113,584.23

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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.