Home / 2,653.40-3,977.80-1,009.52

Finding the Fourth Proportional to 2,653.40, 3,977.80 and 1,009.52

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Solution

The fourth proportional to 2,653.40, 3,977.80 and 1,009.52 is: 1,513.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.40 : 3,977.80 = 1,009.52 : x
  2. Step 2: Convert to fraction form
    2,653.40/3,977.80 = 1,009.52/x
  3. Step 3: Cross multiply
    2,653.40x = 3,977.80 × 1,009.52
  4. Step 4: Simplify right side
    2,653.40x = 4,015,668.66
  5. Step 5: Solve for x
    x = 4,015,668.66/2,653.40
  6. Step 6: Final answer
    x = 1,513.40

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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.