Home / 5,535.84-7,639.46-3,178.44

Finding the Fourth Proportional to 5,535.84, 7,639.46 and 3,178.44

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Solution

The fourth proportional to 5,535.84, 7,639.46 and 3,178.44 is: 4,386.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.84 : 7,639.46 = 3,178.44 : x
  2. Step 2: Convert to fraction form
    5,535.84/7,639.46 = 3,178.44/x
  3. Step 3: Cross multiply
    5,535.84x = 7,639.46 × 3,178.44
  4. Step 4: Simplify right side
    5,535.84x = 24,281,579.15
  5. Step 5: Solve for x
    x = 24,281,579.15/5,535.84
  6. Step 6: Final answer
    x = 4,386.25

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1.5x scale

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.