Home / 2,646.24-3,970.32-1,346.64

Finding the Fourth Proportional to 2,646.24, 3,970.32 and 1,346.64

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Solution

The fourth proportional to 2,646.24, 3,970.32 and 1,346.64 is: 2,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646.24 : 3,970.32 = 1,346.64 : x
  2. Step 2: Convert to fraction form
    2,646.24/3,970.32 = 1,346.64/x
  3. Step 3: Cross multiply
    2,646.24x = 3,970.32 × 1,346.64
  4. Step 4: Simplify right side
    2,646.24x = 5,346,591.72
  5. Step 5: Solve for x
    x = 5,346,591.72/2,646.24
  6. Step 6: Final answer
    x = 2,020.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.