Home / 2,990.35-4,492.41-1,883.22

Finding the Fourth Proportional to 2,990.35, 4,492.41 and 1,883.22

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Solution

The fourth proportional to 2,990.35, 4,492.41 and 1,883.22 is: 2,829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.35 : 4,492.41 = 1,883.22 : x
  2. Step 2: Convert to fraction form
    2,990.35/4,492.41 = 1,883.22/x
  3. Step 3: Cross multiply
    2,990.35x = 4,492.41 × 1,883.22
  4. Step 4: Simplify right side
    2,990.35x = 8,460,196.36
  5. Step 5: Solve for x
    x = 8,460,196.36/2,990.35
  6. Step 6: Final answer
    x = 2,829.17

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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.