Home / 1,513.44-2,087.64-1,009.22

Finding the Fourth Proportional to 1,513.44, 2,087.64 and 1,009.22

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Solution

The fourth proportional to 1,513.44, 2,087.64 and 1,009.22 is: 1,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.44 : 2,087.64 = 1,009.22 : x
  2. Step 2: Convert to fraction form
    1,513.44/2,087.64 = 1,009.22/x
  3. Step 3: Cross multiply
    1,513.44x = 2,087.64 × 1,009.22
  4. Step 4: Simplify right side
    1,513.44x = 2,106,877.60
  5. Step 5: Solve for x
    x = 2,106,877.60/1,513.44
  6. Step 6: Final answer
    x = 1,392.11

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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.