Home / 1,339.63-2,009.41-1,106.35

Finding the Fourth Proportional to 1,339.63, 2,009.41 and 1,106.35

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Solution

The fourth proportional to 1,339.63, 2,009.41 and 1,106.35 is: 1,659.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.63 : 2,009.41 = 1,106.35 : x
  2. Step 2: Convert to fraction form
    1,339.63/2,009.41 = 1,106.35/x
  3. Step 3: Cross multiply
    1,339.63x = 2,009.41 × 1,106.35
  4. Step 4: Simplify right side
    1,339.63x = 2,223,110.75
  5. Step 5: Solve for x
    x = 2,223,110.75/1,339.63
  6. Step 6: Final answer
    x = 1,659.50

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1.5x scale

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.