Home / 2,913.05-4,019.37-1,904.99

Finding the Fourth Proportional to 2,913.05, 4,019.37 and 1,904.99

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Solution

The fourth proportional to 2,913.05, 4,019.37 and 1,904.99 is: 2,628.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.05 : 4,019.37 = 1,904.99 : x
  2. Step 2: Convert to fraction form
    2,913.05/4,019.37 = 1,904.99/x
  3. Step 3: Cross multiply
    2,913.05x = 4,019.37 × 1,904.99
  4. Step 4: Simplify right side
    2,913.05x = 7,656,859.66
  5. Step 5: Solve for x
    x = 7,656,859.66/2,913.05
  6. Step 6: Final answer
    x = 2,628.47

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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.