Home / 4,688.64-7,035.36-1,917.36

Finding the Fourth Proportional to 4,688.64, 7,035.36 and 1,917.36

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Solution

The fourth proportional to 4,688.64, 7,035.36 and 1,917.36 is: 2,877.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.64 : 7,035.36 = 1,917.36 : x
  2. Step 2: Convert to fraction form
    4,688.64/7,035.36 = 1,917.36/x
  3. Step 3: Cross multiply
    4,688.64x = 7,035.36 × 1,917.36
  4. Step 4: Simplify right side
    4,688.64x = 13,489,317.85
  5. Step 5: Solve for x
    x = 13,489,317.85/4,688.64
  6. Step 6: Final answer
    x = 2,877.02

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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.