Home / 6,603.30-9,904.77-1,986.30

Finding the Fourth Proportional to 6,603.30, 9,904.77 and 1,986.30

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Solution

The fourth proportional to 6,603.30, 9,904.77 and 1,986.30 is: 2,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.30 : 9,904.77 = 1,986.30 : x
  2. Step 2: Convert to fraction form
    6,603.30/9,904.77 = 1,986.30/x
  3. Step 3: Cross multiply
    6,603.30x = 9,904.77 × 1,986.30
  4. Step 4: Simplify right side
    6,603.30x = 19,673,844.65
  5. Step 5: Solve for x
    x = 19,673,844.65/6,603.30
  6. Step 6: Final answer
    x = 2,979.40

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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.