Home / 7,280.34-10,920.87-2,662.98

Finding the Fourth Proportional to 7,280.34, 10,920.87 and 2,662.98

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Solution

The fourth proportional to 7,280.34, 10,920.87 and 2,662.98 is: 3,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.34 : 10,920.87 = 2,662.98 : x
  2. Step 2: Convert to fraction form
    7,280.34/10,920.87 = 2,662.98/x
  3. Step 3: Cross multiply
    7,280.34x = 10,920.87 × 2,662.98
  4. Step 4: Simplify right side
    7,280.34x = 29,082,058.39
  5. Step 5: Solve for x
    x = 29,082,058.39/7,280.34
  6. Step 6: Final answer
    x = 3,994.60

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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.