Home / 4,985.39-6,879.98-3,071.63

Finding the Fourth Proportional to 4,985.39, 6,879.98 and 3,071.63

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Solution

The fourth proportional to 4,985.39, 6,879.98 and 3,071.63 is: 4,238.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.39 : 6,879.98 = 3,071.63 : x
  2. Step 2: Convert to fraction form
    4,985.39/6,879.98 = 3,071.63/x
  3. Step 3: Cross multiply
    4,985.39x = 6,879.98 × 3,071.63
  4. Step 4: Simplify right side
    4,985.39x = 21,132,726.25
  5. Step 5: Solve for x
    x = 21,132,726.25/4,985.39
  6. Step 6: Final answer
    x = 4,238.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.