Home / 3,656.04-5,045.32-1,977.45

Finding the Fourth Proportional to 3,656.04, 5,045.32 and 1,977.45

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Solution

The fourth proportional to 3,656.04, 5,045.32 and 1,977.45 is: 2,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.04 : 5,045.32 = 1,977.45 : x
  2. Step 2: Convert to fraction form
    3,656.04/5,045.32 = 1,977.45/x
  3. Step 3: Cross multiply
    3,656.04x = 5,045.32 × 1,977.45
  4. Step 4: Simplify right side
    3,656.04x = 9,976,868.03
  5. Step 5: Solve for x
    x = 9,976,868.03/3,656.04
  6. Step 6: Final answer
    x = 2,728.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.