Home / 2,399.50-3,312.94-1,699.66

Finding the Fourth Proportional to 2,399.50, 3,312.94 and 1,699.66

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Solution

The fourth proportional to 2,399.50, 3,312.94 and 1,699.66 is: 2,346.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.50 : 3,312.94 = 1,699.66 : x
  2. Step 2: Convert to fraction form
    2,399.50/3,312.94 = 1,699.66/x
  3. Step 3: Cross multiply
    2,399.50x = 3,312.94 × 1,699.66
  4. Step 4: Simplify right side
    2,399.50x = 5,630,871.60
  5. Step 5: Solve for x
    x = 5,630,871.60/2,399.50
  6. Step 6: Final answer
    x = 2,346.69

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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.