Home / 2,271.95-3,135.26-1,277.21

Finding the Fourth Proportional to 2,271.95, 3,135.26 and 1,277.21

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Solution

The fourth proportional to 2,271.95, 3,135.26 and 1,277.21 is: 1,762.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.95 : 3,135.26 = 1,277.21 : x
  2. Step 2: Convert to fraction form
    2,271.95/3,135.26 = 1,277.21/x
  3. Step 3: Cross multiply
    2,271.95x = 3,135.26 × 1,277.21
  4. Step 4: Simplify right side
    2,271.95x = 4,004,363.36
  5. Step 5: Solve for x
    x = 4,004,363.36/2,271.95
  6. Step 6: Final answer
    x = 1,762.53

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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.