Home / 4,690.10-7,032.55-1,918.72

Finding the Fourth Proportional to 4,690.10, 7,032.55 and 1,918.72

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Solution

The fourth proportional to 4,690.10, 7,032.55 and 1,918.72 is: 2,877.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.10 : 7,032.55 = 1,918.72 : x
  2. Step 2: Convert to fraction form
    4,690.10/7,032.55 = 1,918.72/x
  3. Step 3: Cross multiply
    4,690.10x = 7,032.55 × 1,918.72
  4. Step 4: Simplify right side
    4,690.10x = 13,493,449.58
  5. Step 5: Solve for x
    x = 13,493,449.58/4,690.10
  6. Step 6: Final answer
    x = 2,877.01

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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.