Home / 2,157,515.68-2,978,491.12-1,576,085.96

Finding the Fourth Proportional to 2,157,515.68, 2,978,491.12 and 1,576,085.96

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Solution

The fourth proportional to 2,157,515.68, 2,978,491.12 and 1,576,085.96 is: 2,175,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,515.68 : 2,978,491.12 = 1,576,085.96 : x
  2. Step 2: Convert to fraction form
    2,157,515.68/2,978,491.12 = 1,576,085.96/x
  3. Step 3: Cross multiply
    2,157,515.68x = 2,978,491.12 × 1,576,085.96
  4. Step 4: Simplify right side
    2,157,515.68x = 4,694,358,036,216.68
  5. Step 5: Solve for x
    x = 4,694,358,036,216.68/2,157,515.68
  6. Step 6: Final answer
    x = 2,175,816.42

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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.