Home / 2,445.30-3,666.60-982.80

Finding the Fourth Proportional to 2,445.30, 3,666.60 and 982.80

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Solution

The fourth proportional to 2,445.30, 3,666.60 and 982.80 is: 1,473.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.30 : 3,666.60 = 982.80 : x
  2. Step 2: Convert to fraction form
    2,445.30/3,666.60 = 982.80/x
  3. Step 3: Cross multiply
    2,445.30x = 3,666.60 × 982.80
  4. Step 4: Simplify right side
    2,445.30x = 3,603,534.48
  5. Step 5: Solve for x
    x = 3,603,534.48/2,445.30
  6. Step 6: Final answer
    x = 1,473.66

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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.