Home / 2,765.60-3,816.21-1,646.38

Finding the Fourth Proportional to 2,765.60, 3,816.21 and 1,646.38

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Solution

The fourth proportional to 2,765.60, 3,816.21 and 1,646.38 is: 2,271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.60 : 3,816.21 = 1,646.38 : x
  2. Step 2: Convert to fraction form
    2,765.60/3,816.21 = 1,646.38/x
  3. Step 3: Cross multiply
    2,765.60x = 3,816.21 × 1,646.38
  4. Step 4: Simplify right side
    2,765.60x = 6,282,931.82
  5. Step 5: Solve for x
    x = 6,282,931.82/2,765.60
  6. Step 6: Final answer
    x = 2,271.82

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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.