Home / 2,914.45-4,021.99-1,588.21

Finding the Fourth Proportional to 2,914.45, 4,021.99 and 1,588.21

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Solution

The fourth proportional to 2,914.45, 4,021.99 and 1,588.21 is: 2,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.45 : 4,021.99 = 1,588.21 : x
  2. Step 2: Convert to fraction form
    2,914.45/4,021.99 = 1,588.21/x
  3. Step 3: Cross multiply
    2,914.45x = 4,021.99 × 1,588.21
  4. Step 4: Simplify right side
    2,914.45x = 6,387,750.71
  5. Step 5: Solve for x
    x = 6,387,750.71/2,914.45
  6. Step 6: Final answer
    x = 2,191.75

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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.