Home / 3,403.58-4,698.36-1,988.60

Finding the Fourth Proportional to 3,403.58, 4,698.36 and 1,988.60

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Solution

The fourth proportional to 3,403.58, 4,698.36 and 1,988.60 is: 2,745.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.58 : 4,698.36 = 1,988.60 : x
  2. Step 2: Convert to fraction form
    3,403.58/4,698.36 = 1,988.60/x
  3. Step 3: Cross multiply
    3,403.58x = 4,698.36 × 1,988.60
  4. Step 4: Simplify right side
    3,403.58x = 9,343,135.20
  5. Step 5: Solve for x
    x = 9,343,135.20/3,403.58
  6. Step 6: Final answer
    x = 2,745.09

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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.