Home / 4,450.09-6,678.40-1,986.53

Finding the Fourth Proportional to 4,450.09, 6,678.40 and 1,986.53

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Solution

The fourth proportional to 4,450.09, 6,678.40 and 1,986.53 is: 2,981.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,450.09 : 6,678.40 = 1,986.53 : x
  2. Step 2: Convert to fraction form
    4,450.09/6,678.40 = 1,986.53/x
  3. Step 3: Cross multiply
    4,450.09x = 6,678.40 × 1,986.53
  4. Step 4: Simplify right side
    4,450.09x = 13,266,807.32
  5. Step 5: Solve for x
    x = 13,266,807.32/4,450.09
  6. Step 6: Final answer
    x = 2,981.25

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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.