Home / 1,889.19-2,607.09-1,103.08

Finding the Fourth Proportional to 1,889.19, 2,607.09 and 1,103.08

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Solution

The fourth proportional to 1,889.19, 2,607.09 and 1,103.08 is: 1,522.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.19 : 2,607.09 = 1,103.08 : x
  2. Step 2: Convert to fraction form
    1,889.19/2,607.09 = 1,103.08/x
  3. Step 3: Cross multiply
    1,889.19x = 2,607.09 × 1,103.08
  4. Step 4: Simplify right side
    1,889.19x = 2,875,828.84
  5. Step 5: Solve for x
    x = 2,875,828.84/1,889.19
  6. Step 6: Final answer
    x = 1,522.25

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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.