Home / 3,110.55-4,292.27-1,851.40

Finding the Fourth Proportional to 3,110.55, 4,292.27 and 1,851.40

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Solution

The fourth proportional to 3,110.55, 4,292.27 and 1,851.40 is: 2,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.55 : 4,292.27 = 1,851.40 : x
  2. Step 2: Convert to fraction form
    3,110.55/4,292.27 = 1,851.40/x
  3. Step 3: Cross multiply
    3,110.55x = 4,292.27 × 1,851.40
  4. Step 4: Simplify right side
    3,110.55x = 7,946,720.37
  5. Step 5: Solve for x
    x = 7,946,720.37/3,110.55
  6. Step 6: Final answer
    x = 2,554.77

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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.