Home / 1,482.10-2,220.90-1,188.52

Finding the Fourth Proportional to 1,482.10, 2,220.90 and 1,188.52

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Solution

The fourth proportional to 1,482.10, 2,220.90 and 1,188.52 is: 1,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.10 : 2,220.90 = 1,188.52 : x
  2. Step 2: Convert to fraction form
    1,482.10/2,220.90 = 1,188.52/x
  3. Step 3: Cross multiply
    1,482.10x = 2,220.90 × 1,188.52
  4. Step 4: Simplify right side
    1,482.10x = 2,639,584.07
  5. Step 5: Solve for x
    x = 2,639,584.07/1,482.10
  6. Step 6: Final answer
    x = 1,780.98

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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.