Home / 5,109.41-7,050.98-2,840.74

Finding the Fourth Proportional to 5,109.41, 7,050.98 and 2,840.74

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Solution

The fourth proportional to 5,109.41, 7,050.98 and 2,840.74 is: 3,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.41 : 7,050.98 = 2,840.74 : x
  2. Step 2: Convert to fraction form
    5,109.41/7,050.98 = 2,840.74/x
  3. Step 3: Cross multiply
    5,109.41x = 7,050.98 × 2,840.74
  4. Step 4: Simplify right side
    5,109.41x = 20,029,990.40
  5. Step 5: Solve for x
    x = 20,029,990.40/5,109.41
  6. Step 6: Final answer
    x = 3,920.21

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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.