Home / 5,174.79-7,759.75-1,887.45

Finding the Fourth Proportional to 5,174.79, 7,759.75 and 1,887.45

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Solution

The fourth proportional to 5,174.79, 7,759.75 and 1,887.45 is: 2,830.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.79 : 7,759.75 = 1,887.45 : x
  2. Step 2: Convert to fraction form
    5,174.79/7,759.75 = 1,887.45/x
  3. Step 3: Cross multiply
    5,174.79x = 7,759.75 × 1,887.45
  4. Step 4: Simplify right side
    5,174.79x = 14,646,153.51
  5. Step 5: Solve for x
    x = 14,646,153.51/5,174.79
  6. Step 6: Final answer
    x = 2,830.29

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1.5x scale

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.