Home / 6,390.13-9,587.58-2,879.09

Finding the Fourth Proportional to 6,390.13, 9,587.58 and 2,879.09

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Solution

The fourth proportional to 6,390.13, 9,587.58 and 2,879.09 is: 4,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.13 : 9,587.58 = 2,879.09 : x
  2. Step 2: Convert to fraction form
    6,390.13/9,587.58 = 2,879.09/x
  3. Step 3: Cross multiply
    6,390.13x = 9,587.58 × 2,879.09
  4. Step 4: Simplify right side
    6,390.13x = 27,603,443.37
  5. Step 5: Solve for x
    x = 27,603,443.37/6,390.13
  6. Step 6: Final answer
    x = 4,319.70

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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.