Home / 3,114.50-4,298.05-1,698.18

Finding the Fourth Proportional to 3,114.50, 4,298.05 and 1,698.18

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Solution

The fourth proportional to 3,114.50, 4,298.05 and 1,698.18 is: 2,343.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.50 : 4,298.05 = 1,698.18 : x
  2. Step 2: Convert to fraction form
    3,114.50/4,298.05 = 1,698.18/x
  3. Step 3: Cross multiply
    3,114.50x = 4,298.05 × 1,698.18
  4. Step 4: Simplify right side
    3,114.50x = 7,298,845.44
  5. Step 5: Solve for x
    x = 7,298,845.44/3,114.50
  6. Step 6: Final answer
    x = 2,343.50

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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.