Home / 3,180.03-4,771.40-1,537.80

Finding the Fourth Proportional to 3,180.03, 4,771.40 and 1,537.80

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Solution

The fourth proportional to 3,180.03, 4,771.40 and 1,537.80 is: 2,307.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.03 : 4,771.40 = 1,537.80 : x
  2. Step 2: Convert to fraction form
    3,180.03/4,771.40 = 1,537.80/x
  3. Step 3: Cross multiply
    3,180.03x = 4,771.40 × 1,537.80
  4. Step 4: Simplify right side
    3,180.03x = 7,337,451.23
  5. Step 5: Solve for x
    x = 7,337,451.23/3,180.03
  6. Step 6: Final answer
    x = 2,307.35

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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.