Home / 3,019.40-4,166.78-1,693.11

Finding the Fourth Proportional to 3,019.40, 4,166.78 and 1,693.11

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Solution

The fourth proportional to 3,019.40, 4,166.78 and 1,693.11 is: 2,336.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.40 : 4,166.78 = 1,693.11 : x
  2. Step 2: Convert to fraction form
    3,019.40/4,166.78 = 1,693.11/x
  3. Step 3: Cross multiply
    3,019.40x = 4,166.78 × 1,693.11
  4. Step 4: Simplify right side
    3,019.40x = 7,054,816.89
  5. Step 5: Solve for x
    x = 7,054,816.89/3,019.40
  6. Step 6: Final answer
    x = 2,336.50

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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.