Home / 5,531.04-7,630.86-3,140.64

Finding the Fourth Proportional to 5,531.04, 7,630.86 and 3,140.64

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Solution

The fourth proportional to 5,531.04, 7,630.86 and 3,140.64 is: 4,332.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.04 : 7,630.86 = 3,140.64 : x
  2. Step 2: Convert to fraction form
    5,531.04/7,630.86 = 3,140.64/x
  3. Step 3: Cross multiply
    5,531.04x = 7,630.86 × 3,140.64
  4. Step 4: Simplify right side
    5,531.04x = 23,965,784.15
  5. Step 5: Solve for x
    x = 23,965,784.15/5,531.04
  6. Step 6: Final answer
    x = 4,332.96

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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.