Home / 6,488.70-9,735.45-2,106.30

Finding the Fourth Proportional to 6,488.70, 9,735.45 and 2,106.30

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Solution

The fourth proportional to 6,488.70, 9,735.45 and 2,106.30 is: 3,160.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488.70 : 9,735.45 = 2,106.30 : x
  2. Step 2: Convert to fraction form
    6,488.70/9,735.45 = 2,106.30/x
  3. Step 3: Cross multiply
    6,488.70x = 9,735.45 × 2,106.30
  4. Step 4: Simplify right side
    6,488.70x = 20,505,778.34
  5. Step 5: Solve for x
    x = 20,505,778.34/6,488.70
  6. Step 6: Final answer
    x = 3,160.23

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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.