Home / 5,328.39-7,354.74-3,091.30

Finding the Fourth Proportional to 5,328.39, 7,354.74 and 3,091.30

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Solution

The fourth proportional to 5,328.39, 7,354.74 and 3,091.30 is: 4,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.39 : 7,354.74 = 3,091.30 : x
  2. Step 2: Convert to fraction form
    5,328.39/7,354.74 = 3,091.30/x
  3. Step 3: Cross multiply
    5,328.39x = 7,354.74 × 3,091.30
  4. Step 4: Simplify right side
    5,328.39x = 22,735,707.76
  5. Step 5: Solve for x
    x = 22,735,707.76/5,328.39
  6. Step 6: Final answer
    x = 4,266.90

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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.