Home / 4,648.40-6,972.58-1,185.64

Finding the Fourth Proportional to 4,648.40, 6,972.58 and 1,185.64

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Solution

The fourth proportional to 4,648.40, 6,972.58 and 1,185.64 is: 1,778.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,648.40 : 6,972.58 = 1,185.64 : x
  2. Step 2: Convert to fraction form
    4,648.40/6,972.58 = 1,185.64/x
  3. Step 3: Cross multiply
    4,648.40x = 6,972.58 × 1,185.64
  4. Step 4: Simplify right side
    4,648.40x = 8,266,969.75
  5. Step 5: Solve for x
    x = 8,266,969.75/4,648.40
  6. Step 6: Final answer
    x = 1,778.45

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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.