Home / 3,746.40-5,619.60-1,113.89

Finding the Fourth Proportional to 3,746.40, 5,619.60 and 1,113.89

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Solution

The fourth proportional to 3,746.40, 5,619.60 and 1,113.89 is: 1,670.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.40 : 5,619.60 = 1,113.89 : x
  2. Step 2: Convert to fraction form
    3,746.40/5,619.60 = 1,113.89/x
  3. Step 3: Cross multiply
    3,746.40x = 5,619.60 × 1,113.89
  4. Step 4: Simplify right side
    3,746.40x = 6,259,622.96
  5. Step 5: Solve for x
    x = 6,259,622.96/3,746.40
  6. Step 6: Final answer
    x = 1,670.84

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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.