Home / 3,887.16-5,830.96-1,938.72

Finding the Fourth Proportional to 3,887.16, 5,830.96 and 1,938.72

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Solution

The fourth proportional to 3,887.16, 5,830.96 and 1,938.72 is: 2,908.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.16 : 5,830.96 = 1,938.72 : x
  2. Step 2: Convert to fraction form
    3,887.16/5,830.96 = 1,938.72/x
  3. Step 3: Cross multiply
    3,887.16x = 5,830.96 × 1,938.72
  4. Step 4: Simplify right side
    3,887.16x = 11,304,598.77
  5. Step 5: Solve for x
    x = 11,304,598.77/3,887.16
  6. Step 6: Final answer
    x = 2,908.19

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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.