Home / 4,148.78-6,218.51-1,810.78

Finding the Fourth Proportional to 4,148.78, 6,218.51 and 1,810.78

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Solution

The fourth proportional to 4,148.78, 6,218.51 and 1,810.78 is: 2,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.78 : 6,218.51 = 1,810.78 : x
  2. Step 2: Convert to fraction form
    4,148.78/6,218.51 = 1,810.78/x
  3. Step 3: Cross multiply
    4,148.78x = 6,218.51 × 1,810.78
  4. Step 4: Simplify right side
    4,148.78x = 11,260,328.94
  5. Step 5: Solve for x
    x = 11,260,328.94/4,148.78
  6. Step 6: Final answer
    x = 2,714.13

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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.