Home / 1,409.03-2,110.72-1,294.21

Finding the Fourth Proportional to 1,409.03, 2,110.72 and 1,294.21

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Solution

The fourth proportional to 1,409.03, 2,110.72 and 1,294.21 is: 1,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409.03 : 2,110.72 = 1,294.21 : x
  2. Step 2: Convert to fraction form
    1,409.03/2,110.72 = 1,294.21/x
  3. Step 3: Cross multiply
    1,409.03x = 2,110.72 × 1,294.21
  4. Step 4: Simplify right side
    1,409.03x = 2,731,714.93
  5. Step 5: Solve for x
    x = 2,731,714.93/1,409.03
  6. Step 6: Final answer
    x = 1,938.72

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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.