Home / 5,386.94-8,080.39-1,384.32

Finding the Fourth Proportional to 5,386.94, 8,080.39 and 1,384.32

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Solution

The fourth proportional to 5,386.94, 8,080.39 and 1,384.32 is: 2,076.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.94 : 8,080.39 = 1,384.32 : x
  2. Step 2: Convert to fraction form
    5,386.94/8,080.39 = 1,384.32/x
  3. Step 3: Cross multiply
    5,386.94x = 8,080.39 × 1,384.32
  4. Step 4: Simplify right side
    5,386.94x = 11,185,878.33
  5. Step 5: Solve for x
    x = 11,185,878.33/5,386.94
  6. Step 6: Final answer
    x = 2,076.48

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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.