Home / 5,455.98-8,184.36-5,160.72

Finding the Fourth Proportional to 5,455.98, 8,184.36 and 5,160.72

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Solution

The fourth proportional to 5,455.98, 8,184.36 and 5,160.72 is: 7,741.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.98 : 8,184.36 = 5,160.72 : x
  2. Step 2: Convert to fraction form
    5,455.98/8,184.36 = 5,160.72/x
  3. Step 3: Cross multiply
    5,455.98x = 8,184.36 × 5,160.72
  4. Step 4: Simplify right side
    5,455.98x = 42,237,190.34
  5. Step 5: Solve for x
    x = 42,237,190.34/5,455.98
  6. Step 6: Final answer
    x = 7,741.45

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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.