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Finding the Fourth Proportional to 2,210.99, 3,051.17 and 1,326.80

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Solution

The fourth proportional to 2,210.99, 3,051.17 and 1,326.80 is: 1,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.99 : 3,051.17 = 1,326.80 : x
  2. Step 2: Convert to fraction form
    2,210.99/3,051.17 = 1,326.80/x
  3. Step 3: Cross multiply
    2,210.99x = 3,051.17 × 1,326.80
  4. Step 4: Simplify right side
    2,210.99x = 4,048,277.10
  5. Step 5: Solve for x
    x = 4,048,277.10/2,210.99
  6. Step 6: Final answer
    x = 1,830.98

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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.