Home / 4,690.40-7,035.58-1,918.36

Finding the Fourth Proportional to 4,690.40, 7,035.58 and 1,918.36

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Solution

The fourth proportional to 4,690.40, 7,035.58 and 1,918.36 is: 2,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.40 : 7,035.58 = 1,918.36 : x
  2. Step 2: Convert to fraction form
    4,690.40/7,035.58 = 1,918.36/x
  3. Step 3: Cross multiply
    4,690.40x = 7,035.58 × 1,918.36
  4. Step 4: Simplify right side
    4,690.40x = 13,496,775.25
  5. Step 5: Solve for x
    x = 13,496,775.25/4,690.40
  6. Step 6: Final answer
    x = 2,877.53

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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.