Home / 2,742.12-3,784.14-1,563.30

Finding the Fourth Proportional to 2,742.12, 3,784.14 and 1,563.30

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Solution

The fourth proportional to 2,742.12, 3,784.14 and 1,563.30 is: 2,157.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.12 : 3,784.14 = 1,563.30 : x
  2. Step 2: Convert to fraction form
    2,742.12/3,784.14 = 1,563.30/x
  3. Step 3: Cross multiply
    2,742.12x = 3,784.14 × 1,563.30
  4. Step 4: Simplify right side
    2,742.12x = 5,915,746.06
  5. Step 5: Solve for x
    x = 5,915,746.06/2,742.12
  6. Step 6: Final answer
    x = 2,157.36

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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.