Home / 7,537.40-11,307.90-3,840.20

Finding the Fourth Proportional to 7,537.40, 11,307.90 and 3,840.20

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Solution

The fourth proportional to 7,537.40, 11,307.90 and 3,840.20 is: 5,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,537.40 : 11,307.90 = 3,840.20 : x
  2. Step 2: Convert to fraction form
    7,537.40/11,307.90 = 3,840.20/x
  3. Step 3: Cross multiply
    7,537.40x = 11,307.90 × 3,840.20
  4. Step 4: Simplify right side
    7,537.40x = 43,424,597.58
  5. Step 5: Solve for x
    x = 43,424,597.58/7,537.40
  6. Step 6: Final answer
    x = 5,761.22

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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.