Home / 5,535.52-7,639.46-3,178.42

Finding the Fourth Proportional to 5,535.52, 7,639.46 and 3,178.42

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Solution

The fourth proportional to 5,535.52, 7,639.46 and 3,178.42 is: 4,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.52 : 7,639.46 = 3,178.42 : x
  2. Step 2: Convert to fraction form
    5,535.52/7,639.46 = 3,178.42/x
  3. Step 3: Cross multiply
    5,535.52x = 7,639.46 × 3,178.42
  4. Step 4: Simplify right side
    5,535.52x = 24,281,412.45
  5. Step 5: Solve for x
    x = 24,281,412.45/5,535.52
  6. Step 6: Final answer
    x = 4,386.47

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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.