Home / 4,212.48-6,319.75-1,439.32

Finding the Fourth Proportional to 4,212.48, 6,319.75 and 1,439.32

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Solution

The fourth proportional to 4,212.48, 6,319.75 and 1,439.32 is: 2,159.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.48 : 6,319.75 = 1,439.32 : x
  2. Step 2: Convert to fraction form
    4,212.48/6,319.75 = 1,439.32/x
  3. Step 3: Cross multiply
    4,212.48x = 6,319.75 × 1,439.32
  4. Step 4: Simplify right side
    4,212.48x = 9,096,133.67
  5. Step 5: Solve for x
    x = 9,096,133.67/4,212.48
  6. Step 6: Final answer
    x = 2,159.33

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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.