Home / 7,220.40-10,830.96-2,025.60

Finding the Fourth Proportional to 7,220.40, 10,830.96 and 2,025.60

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Solution

The fourth proportional to 7,220.40, 10,830.96 and 2,025.60 is: 3,038.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.40 : 10,830.96 = 2,025.60 : x
  2. Step 2: Convert to fraction form
    7,220.40/10,830.96 = 2,025.60/x
  3. Step 3: Cross multiply
    7,220.40x = 10,830.96 × 2,025.60
  4. Step 4: Simplify right side
    7,220.40x = 21,939,192.58
  5. Step 5: Solve for x
    x = 21,939,192.58/7,220.40
  6. Step 6: Final answer
    x = 3,038.50

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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.