Home / 2,556.60-3,528.90-1,966.44

Finding the Fourth Proportional to 2,556.60, 3,528.90 and 1,966.44

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Solution

The fourth proportional to 2,556.60, 3,528.90 and 1,966.44 is: 2,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.60 : 3,528.90 = 1,966.44 : x
  2. Step 2: Convert to fraction form
    2,556.60/3,528.90 = 1,966.44/x
  3. Step 3: Cross multiply
    2,556.60x = 3,528.90 × 1,966.44
  4. Step 4: Simplify right side
    2,556.60x = 6,939,370.12
  5. Step 5: Solve for x
    x = 6,939,370.12/2,556.60
  6. Step 6: Final answer
    x = 2,714.30

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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.