Home / 3,528.45-5,295.84-1,886.40

Finding the Fourth Proportional to 3,528.45, 5,295.84 and 1,886.40

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Solution

The fourth proportional to 3,528.45, 5,295.84 and 1,886.40 is: 2,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.45 : 5,295.84 = 1,886.40 : x
  2. Step 2: Convert to fraction form
    3,528.45/5,295.84 = 1,886.40/x
  3. Step 3: Cross multiply
    3,528.45x = 5,295.84 × 1,886.40
  4. Step 4: Simplify right side
    3,528.45x = 9,990,072.58
  5. Step 5: Solve for x
    x = 9,990,072.58/3,528.45
  6. Step 6: Final answer
    x = 2,831.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.