Home / 6,990.60-10,482.30-2,605.80

Finding the Fourth Proportional to 6,990.60, 10,482.30 and 2,605.80

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Solution

The fourth proportional to 6,990.60, 10,482.30 and 2,605.80 is: 3,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.60 : 10,482.30 = 2,605.80 : x
  2. Step 2: Convert to fraction form
    6,990.60/10,482.30 = 2,605.80/x
  3. Step 3: Cross multiply
    6,990.60x = 10,482.30 × 2,605.80
  4. Step 4: Simplify right side
    6,990.60x = 27,314,777.34
  5. Step 5: Solve for x
    x = 27,314,777.34/6,990.60
  6. Step 6: Final answer
    x = 3,907.36

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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.