Home / 5,677.74-8,518.14-1,980.18

Finding the Fourth Proportional to 5,677.74, 8,518.14 and 1,980.18

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Solution

The fourth proportional to 5,677.74, 8,518.14 and 1,980.18 is: 2,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.74 : 8,518.14 = 1,980.18 : x
  2. Step 2: Convert to fraction form
    5,677.74/8,518.14 = 1,980.18/x
  3. Step 3: Cross multiply
    5,677.74x = 8,518.14 × 1,980.18
  4. Step 4: Simplify right side
    5,677.74x = 16,867,450.47
  5. Step 5: Solve for x
    x = 16,867,450.47/5,677.74
  6. Step 6: Final answer
    x = 2,970.80

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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.