Home / 3,909.78-5,864.74-1,718.06

Finding the Fourth Proportional to 3,909.78, 5,864.74 and 1,718.06

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Solution

The fourth proportional to 3,909.78, 5,864.74 and 1,718.06 is: 2,577.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.78 : 5,864.74 = 1,718.06 : x
  2. Step 2: Convert to fraction form
    3,909.78/5,864.74 = 1,718.06/x
  3. Step 3: Cross multiply
    3,909.78x = 5,864.74 × 1,718.06
  4. Step 4: Simplify right side
    3,909.78x = 10,075,941.59
  5. Step 5: Solve for x
    x = 10,075,941.59/3,909.78
  6. Step 6: Final answer
    x = 2,577.11

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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.