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Finding the Fourth Proportional to 1,888.42, 2,828.94 and 1,237.18

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Solution

The fourth proportional to 1,888.42, 2,828.94 and 1,237.18 is: 1,853.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.42 : 2,828.94 = 1,237.18 : x
  2. Step 2: Convert to fraction form
    1,888.42/2,828.94 = 1,237.18/x
  3. Step 3: Cross multiply
    1,888.42x = 2,828.94 × 1,237.18
  4. Step 4: Simplify right side
    1,888.42x = 3,499,907.99
  5. Step 5: Solve for x
    x = 3,499,907.99/1,888.42
  6. Step 6: Final answer
    x = 1,853.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.