Home / 5,157.47-7,735.74-1,459.62

Finding the Fourth Proportional to 5,157.47, 7,735.74 and 1,459.62

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Solution

The fourth proportional to 5,157.47, 7,735.74 and 1,459.62 is: 2,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.47 : 7,735.74 = 1,459.62 : x
  2. Step 2: Convert to fraction form
    5,157.47/7,735.74 = 1,459.62/x
  3. Step 3: Cross multiply
    5,157.47x = 7,735.74 × 1,459.62
  4. Step 4: Simplify right side
    5,157.47x = 11,291,235.35
  5. Step 5: Solve for x
    x = 11,291,235.35/5,157.47
  6. Step 6: Final answer
    x = 2,189.30

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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.