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Finding the Fourth Proportional to 3,284.80, 4,927.20 and 3,036.40

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Solution

The fourth proportional to 3,284.80, 4,927.20 and 3,036.40 is: 4,554.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,284.80 : 4,927.20 = 3,036.40 : x
  2. Step 2: Convert to fraction form
    3,284.80/4,927.20 = 3,036.40/x
  3. Step 3: Cross multiply
    3,284.80x = 4,927.20 × 3,036.40
  4. Step 4: Simplify right side
    3,284.80x = 14,960,950.08
  5. Step 5: Solve for x
    x = 14,960,950.08/3,284.80
  6. Step 6: Final answer
    x = 4,554.60

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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.