Home / 3,010.80-4,154.88-1,684.50

Finding the Fourth Proportional to 3,010.80, 4,154.88 and 1,684.50

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Solution

The fourth proportional to 3,010.80, 4,154.88 and 1,684.50 is: 2,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.80 : 4,154.88 = 1,684.50 : x
  2. Step 2: Convert to fraction form
    3,010.80/4,154.88 = 1,684.50/x
  3. Step 3: Cross multiply
    3,010.80x = 4,154.88 × 1,684.50
  4. Step 4: Simplify right side
    3,010.80x = 6,998,895.36
  5. Step 5: Solve for x
    x = 6,998,895.36/3,010.80
  6. Step 6: Final answer
    x = 2,324.60

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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.