Home / 1,482.21-2,223.75-442.25

Finding the Fourth Proportional to 1,482.21, 2,223.75 and 442.25

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Solution

The fourth proportional to 1,482.21, 2,223.75 and 442.25 is: 663.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.21 : 2,223.75 = 442.25 : x
  2. Step 2: Convert to fraction form
    1,482.21/2,223.75 = 442.25/x
  3. Step 3: Cross multiply
    1,482.21x = 2,223.75 × 442.25
  4. Step 4: Simplify right side
    1,482.21x = 983,453.44
  5. Step 5: Solve for x
    x = 983,453.44/1,482.21
  6. Step 6: Final answer
    x = 663.50

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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.