Home / 3,779.40-5,666.86-1,146.10

Finding the Fourth Proportional to 3,779.40, 5,666.86 and 1,146.10

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Solution

The fourth proportional to 3,779.40, 5,666.86 and 1,146.10 is: 1,718.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.40 : 5,666.86 = 1,146.10 : x
  2. Step 2: Convert to fraction form
    3,779.40/5,666.86 = 1,146.10/x
  3. Step 3: Cross multiply
    3,779.40x = 5,666.86 × 1,146.10
  4. Step 4: Simplify right side
    3,779.40x = 6,494,788.25
  5. Step 5: Solve for x
    x = 6,494,788.25/3,779.40
  6. Step 6: Final answer
    x = 1,718.47

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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.