Home / 5,443.36-7,515.44-4,182.16

Finding the Fourth Proportional to 5,443.36, 7,515.44 and 4,182.16

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Solution

The fourth proportional to 5,443.36, 7,515.44 and 4,182.16 is: 5,774.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,443.36 : 7,515.44 = 4,182.16 : x
  2. Step 2: Convert to fraction form
    5,443.36/7,515.44 = 4,182.16/x
  3. Step 3: Cross multiply
    5,443.36x = 7,515.44 × 4,182.16
  4. Step 4: Simplify right side
    5,443.36x = 31,430,772.55
  5. Step 5: Solve for x
    x = 31,430,772.55/5,443.36
  6. Step 6: Final answer
    x = 5,774.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.