Home / 3,578.51-5,368.68-1,113.35

Finding the Fourth Proportional to 3,578.51, 5,368.68 and 1,113.35

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Solution

The fourth proportional to 3,578.51, 5,368.68 and 1,113.35 is: 1,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.51 : 5,368.68 = 1,113.35 : x
  2. Step 2: Convert to fraction form
    3,578.51/5,368.68 = 1,113.35/x
  3. Step 3: Cross multiply
    3,578.51x = 5,368.68 × 1,113.35
  4. Step 4: Simplify right side
    3,578.51x = 5,977,214.31
  5. Step 5: Solve for x
    x = 5,977,214.31/3,578.51
  6. Step 6: Final answer
    x = 1,670.31

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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.