Home / 3,758.53-5,639.56-1,678.35

Finding the Fourth Proportional to 3,758.53, 5,639.56 and 1,678.35

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Solution

The fourth proportional to 3,758.53, 5,639.56 and 1,678.35 is: 2,518.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.53 : 5,639.56 = 1,678.35 : x
  2. Step 2: Convert to fraction form
    3,758.53/5,639.56 = 1,678.35/x
  3. Step 3: Cross multiply
    3,758.53x = 5,639.56 × 1,678.35
  4. Step 4: Simplify right side
    3,758.53x = 9,465,155.53
  5. Step 5: Solve for x
    x = 9,465,155.53/3,758.53
  6. Step 6: Final answer
    x = 2,518.31

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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.