Home / 2,828.18-3,904.14-1,885.64

Finding the Fourth Proportional to 2,828.18, 3,904.14 and 1,885.64

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Solution

The fourth proportional to 2,828.18, 3,904.14 and 1,885.64 is: 2,603.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.18 : 3,904.14 = 1,885.64 : x
  2. Step 2: Convert to fraction form
    2,828.18/3,904.14 = 1,885.64/x
  3. Step 3: Cross multiply
    2,828.18x = 3,904.14 × 1,885.64
  4. Step 4: Simplify right side
    2,828.18x = 7,361,802.55
  5. Step 5: Solve for x
    x = 7,361,802.55/2,828.18
  6. Step 6: Final answer
    x = 2,603.02

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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.