Home / 1,229.12-1,841.76-1,045.76

Finding the Fourth Proportional to 1,229.12, 1,841.76 and 1,045.76

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Solution

The fourth proportional to 1,229.12, 1,841.76 and 1,045.76 is: 1,567.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.12 : 1,841.76 = 1,045.76 : x
  2. Step 2: Convert to fraction form
    1,229.12/1,841.76 = 1,045.76/x
  3. Step 3: Cross multiply
    1,229.12x = 1,841.76 × 1,045.76
  4. Step 4: Simplify right side
    1,229.12x = 1,926,038.94
  5. Step 5: Solve for x
    x = 1,926,038.94/1,229.12
  6. Step 6: Final answer
    x = 1,567.01

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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.