Home / 1,103.04-1,522.35-631.03

Finding the Fourth Proportional to 1,103.04, 1,522.35 and 631.03

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Solution

The fourth proportional to 1,103.04, 1,522.35 and 631.03 is: 870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.04 : 1,522.35 = 631.03 : x
  2. Step 2: Convert to fraction form
    1,103.04/1,522.35 = 631.03/x
  3. Step 3: Cross multiply
    1,103.04x = 1,522.35 × 631.03
  4. Step 4: Simplify right side
    1,103.04x = 960,645.37
  5. Step 5: Solve for x
    x = 960,645.37/1,103.04
  6. Step 6: Final answer
    x = 870.91

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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.