Home / 1,904.67-2,628.05-1,118.43

Finding the Fourth Proportional to 1,904.67, 2,628.05 and 1,118.43

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Solution

The fourth proportional to 1,904.67, 2,628.05 and 1,118.43 is: 1,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.67 : 2,628.05 = 1,118.43 : x
  2. Step 2: Convert to fraction form
    1,904.67/2,628.05 = 1,118.43/x
  3. Step 3: Cross multiply
    1,904.67x = 2,628.05 × 1,118.43
  4. Step 4: Simplify right side
    1,904.67x = 2,939,284.37
  5. Step 5: Solve for x
    x = 2,939,284.37/1,904.67
  6. Step 6: Final answer
    x = 1,543.20

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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.