Home / 1,913.51-2,642.45-1,809.97

Finding the Fourth Proportional to 1,913.51, 2,642.45 and 1,809.97

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Solution

The fourth proportional to 1,913.51, 2,642.45 and 1,809.97 is: 2,499.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.51 : 2,642.45 = 1,809.97 : x
  2. Step 2: Convert to fraction form
    1,913.51/2,642.45 = 1,809.97/x
  3. Step 3: Cross multiply
    1,913.51x = 2,642.45 × 1,809.97
  4. Step 4: Simplify right side
    1,913.51x = 4,782,739.57
  5. Step 5: Solve for x
    x = 4,782,739.57/1,913.51
  6. Step 6: Final answer
    x = 2,499.46

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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.