Home / 1,522.80-2,100.54-1,102.68

Finding the Fourth Proportional to 1,522.80, 2,100.54 and 1,102.68

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Solution

The fourth proportional to 1,522.80, 2,100.54 and 1,102.68 is: 1,521.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522.80 : 2,100.54 = 1,102.68 : x
  2. Step 2: Convert to fraction form
    1,522.80/2,100.54 = 1,102.68/x
  3. Step 3: Cross multiply
    1,522.80x = 2,100.54 × 1,102.68
  4. Step 4: Simplify right side
    1,522.80x = 2,316,223.45
  5. Step 5: Solve for x
    x = 2,316,223.45/1,522.80
  6. Step 6: Final answer
    x = 1,521.03

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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.