Home / 3,430.05-4,741.25-3,157.89

Finding the Fourth Proportional to 3,430.05, 4,741.25 and 3,157.89

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Solution

The fourth proportional to 3,430.05, 4,741.25 and 3,157.89 is: 4,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.05 : 4,741.25 = 3,157.89 : x
  2. Step 2: Convert to fraction form
    3,430.05/4,741.25 = 3,157.89/x
  3. Step 3: Cross multiply
    3,430.05x = 4,741.25 × 3,157.89
  4. Step 4: Simplify right side
    3,430.05x = 14,972,330.17
  5. Step 5: Solve for x
    x = 14,972,330.17/3,430.05
  6. Step 6: Final answer
    x = 4,365.05

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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.