Home / 6,980.60-10,472.40-2,049.80

Finding the Fourth Proportional to 6,980.60, 10,472.40 and 2,049.80

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Solution

The fourth proportional to 6,980.60, 10,472.40 and 2,049.80 is: 3,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980.60 : 10,472.40 = 2,049.80 : x
  2. Step 2: Convert to fraction form
    6,980.60/10,472.40 = 2,049.80/x
  3. Step 3: Cross multiply
    6,980.60x = 10,472.40 × 2,049.80
  4. Step 4: Simplify right side
    6,980.60x = 21,466,325.52
  5. Step 5: Solve for x
    x = 21,466,325.52/6,980.60
  6. Step 6: Final answer
    x = 3,075.14

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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.