Home / 2,465.59-3,698.46-1,078.21

Finding the Fourth Proportional to 2,465.59, 3,698.46 and 1,078.21

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Solution

The fourth proportional to 2,465.59, 3,698.46 and 1,078.21 is: 1,617.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,465.59 : 3,698.46 = 1,078.21 : x
  2. Step 2: Convert to fraction form
    2,465.59/3,698.46 = 1,078.21/x
  3. Step 3: Cross multiply
    2,465.59x = 3,698.46 × 1,078.21
  4. Step 4: Simplify right side
    2,465.59x = 3,987,721.18
  5. Step 5: Solve for x
    x = 3,987,721.18/2,465.59
  6. Step 6: Final answer
    x = 1,617.35

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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.