Home / 3,485.90-5,228.58-1,636.58

Finding the Fourth Proportional to 3,485.90, 5,228.58 and 1,636.58

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Solution

The fourth proportional to 3,485.90, 5,228.58 and 1,636.58 is: 2,454.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.90 : 5,228.58 = 1,636.58 : x
  2. Step 2: Convert to fraction form
    3,485.90/5,228.58 = 1,636.58/x
  3. Step 3: Cross multiply
    3,485.90x = 5,228.58 × 1,636.58
  4. Step 4: Simplify right side
    3,485.90x = 8,556,989.46
  5. Step 5: Solve for x
    x = 8,556,989.46/3,485.90
  6. Step 6: Final answer
    x = 2,454.74

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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.