Home / 4,456.69-6,685.39-1,378.69

Finding the Fourth Proportional to 4,456.69, 6,685.39 and 1,378.69

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Solution

The fourth proportional to 4,456.69, 6,685.39 and 1,378.69 is: 2,068.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,456.69 : 6,685.39 = 1,378.69 : x
  2. Step 2: Convert to fraction form
    4,456.69/6,685.39 = 1,378.69/x
  3. Step 3: Cross multiply
    4,456.69x = 6,685.39 × 1,378.69
  4. Step 4: Simplify right side
    4,456.69x = 9,217,065.35
  5. Step 5: Solve for x
    x = 9,217,065.35/4,456.69
  6. Step 6: Final answer
    x = 2,068.14

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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.