Home / 5,385.84-7,433.67-3,148.80

Finding the Fourth Proportional to 5,385.84, 7,433.67 and 3,148.80

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Solution

The fourth proportional to 5,385.84, 7,433.67 and 3,148.80 is: 4,346.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.84 : 7,433.67 = 3,148.80 : x
  2. Step 2: Convert to fraction form
    5,385.84/7,433.67 = 3,148.80/x
  3. Step 3: Cross multiply
    5,385.84x = 7,433.67 × 3,148.80
  4. Step 4: Simplify right side
    5,385.84x = 23,407,140.10
  5. Step 5: Solve for x
    x = 23,407,140.10/5,385.84
  6. Step 6: Final answer
    x = 4,346.05

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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.