Home / 5,124.75-7,070.07-3,783.57

Finding the Fourth Proportional to 5,124.75, 7,070.07 and 3,783.57

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Solution

The fourth proportional to 5,124.75, 7,070.07 and 3,783.57 is: 5,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.75 : 7,070.07 = 3,783.57 : x
  2. Step 2: Convert to fraction form
    5,124.75/7,070.07 = 3,783.57/x
  3. Step 3: Cross multiply
    5,124.75x = 7,070.07 × 3,783.57
  4. Step 4: Simplify right side
    5,124.75x = 26,750,104.75
  5. Step 5: Solve for x
    x = 26,750,104.75/5,124.75
  6. Step 6: Final answer
    x = 5,219.79

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Half scale
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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.