Home / 3,090.84-4,638.08-1,144.40

Finding the Fourth Proportional to 3,090.84, 4,638.08 and 1,144.40

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Solution

The fourth proportional to 3,090.84, 4,638.08 and 1,144.40 is: 1,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.84 : 4,638.08 = 1,144.40 : x
  2. Step 2: Convert to fraction form
    3,090.84/4,638.08 = 1,144.40/x
  3. Step 3: Cross multiply
    3,090.84x = 4,638.08 × 1,144.40
  4. Step 4: Simplify right side
    3,090.84x = 5,307,818.75
  5. Step 5: Solve for x
    x = 5,307,818.75/3,090.84
  6. Step 6: Final answer
    x = 1,717.27

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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.