Home / 2,851.21-4,268.93-1,461.55

Finding the Fourth Proportional to 2,851.21, 4,268.93 and 1,461.55

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Solution

The fourth proportional to 2,851.21, 4,268.93 and 1,461.55 is: 2,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.21 : 4,268.93 = 1,461.55 : x
  2. Step 2: Convert to fraction form
    2,851.21/4,268.93 = 1,461.55/x
  3. Step 3: Cross multiply
    2,851.21x = 4,268.93 × 1,461.55
  4. Step 4: Simplify right side
    2,851.21x = 6,239,254.64
  5. Step 5: Solve for x
    x = 6,239,254.64/2,851.21
  6. Step 6: Final answer
    x = 2,188.28

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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.