Home / 2,271.52-3,135.02-1,276.86

Finding the Fourth Proportional to 2,271.52, 3,135.02 and 1,276.86

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Solution

The fourth proportional to 2,271.52, 3,135.02 and 1,276.86 is: 1,762.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.52 : 3,135.02 = 1,276.86 : x
  2. Step 2: Convert to fraction form
    2,271.52/3,135.02 = 1,276.86/x
  3. Step 3: Cross multiply
    2,271.52x = 3,135.02 × 1,276.86
  4. Step 4: Simplify right side
    2,271.52x = 4,002,975.25
  5. Step 5: Solve for x
    x = 4,002,975.25/2,271.52
  6. Step 6: Final answer
    x = 1,762.25

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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.