Home / 2,271.60-3,135.14-1,276.96

Finding the Fourth Proportional to 2,271.60, 3,135.14 and 1,276.96

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Solution

The fourth proportional to 2,271.60, 3,135.14 and 1,276.96 is: 1,762.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.60 : 3,135.14 = 1,276.96 : x
  2. Step 2: Convert to fraction form
    2,271.60/3,135.14 = 1,276.96/x
  3. Step 3: Cross multiply
    2,271.60x = 3,135.14 × 1,276.96
  4. Step 4: Simplify right side
    2,271.60x = 4,003,448.37
  5. Step 5: Solve for x
    x = 4,003,448.37/2,271.60
  6. Step 6: Final answer
    x = 1,762.39

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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.