Home / 3,380.27-4,664.77-1,888.23

Finding the Fourth Proportional to 3,380.27, 4,664.77 and 1,888.23

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Solution

The fourth proportional to 3,380.27, 4,664.77 and 1,888.23 is: 2,605.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.27 : 4,664.77 = 1,888.23 : x
  2. Step 2: Convert to fraction form
    3,380.27/4,664.77 = 1,888.23/x
  3. Step 3: Cross multiply
    3,380.27x = 4,664.77 × 1,888.23
  4. Step 4: Simplify right side
    3,380.27x = 8,808,182.05
  5. Step 5: Solve for x
    x = 8,808,182.05/3,380.27
  6. Step 6: Final answer
    x = 2,605.77

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Half scale
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Double scale
Find fourth proportional to 3,381.27, 4,666.15 and 1,889.23
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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.