Home / 2,984.40-4,117.77-1,805.43

Finding the Fourth Proportional to 2,984.40, 4,117.77 and 1,805.43

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Solution

The fourth proportional to 2,984.40, 4,117.77 and 1,805.43 is: 2,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.40 : 4,117.77 = 1,805.43 : x
  2. Step 2: Convert to fraction form
    2,984.40/4,117.77 = 1,805.43/x
  3. Step 3: Cross multiply
    2,984.40x = 4,117.77 × 1,805.43
  4. Step 4: Simplify right side
    2,984.40x = 7,434,345.49
  5. Step 5: Solve for x
    x = 7,434,345.49/2,984.40
  6. Step 6: Final answer
    x = 2,491.07

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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.