Home / 4,345.78-6,519.10-1,225.78

Finding the Fourth Proportional to 4,345.78, 6,519.10 and 1,225.78

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Solution

The fourth proportional to 4,345.78, 6,519.10 and 1,225.78 is: 1,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,345.78 : 6,519.10 = 1,225.78 : x
  2. Step 2: Convert to fraction form
    4,345.78/6,519.10 = 1,225.78/x
  3. Step 3: Cross multiply
    4,345.78x = 6,519.10 × 1,225.78
  4. Step 4: Simplify right side
    4,345.78x = 7,990,982.40
  5. Step 5: Solve for x
    x = 7,990,982.40/4,345.78
  6. Step 6: Final answer
    x = 1,838.79

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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.