Home / 2,688.48-4,034.16-1,228.32

Finding the Fourth Proportional to 2,688.48, 4,034.16 and 1,228.32

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Solution

The fourth proportional to 2,688.48, 4,034.16 and 1,228.32 is: 1,843.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.48 : 4,034.16 = 1,228.32 : x
  2. Step 2: Convert to fraction form
    2,688.48/4,034.16 = 1,228.32/x
  3. Step 3: Cross multiply
    2,688.48x = 4,034.16 × 1,228.32
  4. Step 4: Simplify right side
    2,688.48x = 4,955,239.41
  5. Step 5: Solve for x
    x = 4,955,239.41/2,688.48
  6. Step 6: Final answer
    x = 1,843.14

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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.