Home / 2,742.51-3,784.98-1,563.75

Finding the Fourth Proportional to 2,742.51, 3,784.98 and 1,563.75

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Solution

The fourth proportional to 2,742.51, 3,784.98 and 1,563.75 is: 2,158.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.51 : 3,784.98 = 1,563.75 : x
  2. Step 2: Convert to fraction form
    2,742.51/3,784.98 = 1,563.75/x
  3. Step 3: Cross multiply
    2,742.51x = 3,784.98 × 1,563.75
  4. Step 4: Simplify right side
    2,742.51x = 5,918,762.48
  5. Step 5: Solve for x
    x = 5,918,762.48/2,742.51
  6. Step 6: Final answer
    x = 2,158.16

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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.