Home / 2,811,168.40-3,879,365.40-1,521,998.32

Finding the Fourth Proportional to 2,811,168.40, 3,879,365.40 and 1,521,998.32

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Solution

The fourth proportional to 2,811,168.40, 3,879,365.40 and 1,521,998.32 is: 2,100,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,168.40 : 3,879,365.40 = 1,521,998.32 : x
  2. Step 2: Convert to fraction form
    2,811,168.40/3,879,365.40 = 1,521,998.32/x
  3. Step 3: Cross multiply
    2,811,168.40x = 3,879,365.40 × 1,521,998.32
  4. Step 4: Simplify right side
    2,811,168.40x = 5,904,387,621,466.13
  5. Step 5: Solve for x
    x = 5,904,387,621,466.13/2,811,168.40
  6. Step 6: Final answer
    x = 2,100,332.24

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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.