Home / 2,271.93-3,135.38-1,387.59

Finding the Fourth Proportional to 2,271.93, 3,135.38 and 1,387.59

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Solution

The fourth proportional to 2,271.93, 3,135.38 and 1,387.59 is: 1,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.93 : 3,135.38 = 1,387.59 : x
  2. Step 2: Convert to fraction form
    2,271.93/3,135.38 = 1,387.59/x
  3. Step 3: Cross multiply
    2,271.93x = 3,135.38 × 1,387.59
  4. Step 4: Simplify right side
    2,271.93x = 4,350,615.00
  5. Step 5: Solve for x
    x = 4,350,615.00/2,271.93
  6. Step 6: Final answer
    x = 1,914.94

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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.