Home / 2,984.55-4,118.67-1,805.28

Finding the Fourth Proportional to 2,984.55, 4,118.67 and 1,805.28

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Solution

The fourth proportional to 2,984.55, 4,118.67 and 1,805.28 is: 2,491.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.55 : 4,118.67 = 1,805.28 : x
  2. Step 2: Convert to fraction form
    2,984.55/4,118.67 = 1,805.28/x
  3. Step 3: Cross multiply
    2,984.55x = 4,118.67 × 1,805.28
  4. Step 4: Simplify right side
    2,984.55x = 7,435,352.58
  5. Step 5: Solve for x
    x = 7,435,352.58/2,984.55
  6. Step 6: Final answer
    x = 2,491.28

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1.5x scale

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.