Home / 1,482.15-2,045.40-818.97

Finding the Fourth Proportional to 1,482.15, 2,045.40 and 818.97

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Solution

The fourth proportional to 1,482.15, 2,045.40 and 818.97 is: 1,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.15 : 2,045.40 = 818.97 : x
  2. Step 2: Convert to fraction form
    1,482.15/2,045.40 = 818.97/x
  3. Step 3: Cross multiply
    1,482.15x = 2,045.40 × 818.97
  4. Step 4: Simplify right side
    1,482.15x = 1,675,121.24
  5. Step 5: Solve for x
    x = 1,675,121.24/1,482.15
  6. Step 6: Final answer
    x = 1,130.20

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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.