Home / 3,779.84-5,214.36-3,281.84

Finding the Fourth Proportional to 3,779.84, 5,214.36 and 3,281.84

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Solution

The fourth proportional to 3,779.84, 5,214.36 and 3,281.84 is: 4,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.84 : 5,214.36 = 3,281.84 : x
  2. Step 2: Convert to fraction form
    3,779.84/5,214.36 = 3,281.84/x
  3. Step 3: Cross multiply
    3,779.84x = 5,214.36 × 3,281.84
  4. Step 4: Simplify right side
    3,779.84x = 17,112,695.22
  5. Step 5: Solve for x
    x = 17,112,695.22/3,779.84
  6. Step 6: Final answer
    x = 4,527.36

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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.