Home / 5,431.53-7,487.47-3,937.08

Finding the Fourth Proportional to 5,431.53, 7,487.47 and 3,937.08

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Solution

The fourth proportional to 5,431.53, 7,487.47 and 3,937.08 is: 5,427.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.53 : 7,487.47 = 3,937.08 : x
  2. Step 2: Convert to fraction form
    5,431.53/7,487.47 = 3,937.08/x
  3. Step 3: Cross multiply
    5,431.53x = 7,487.47 × 3,937.08
  4. Step 4: Simplify right side
    5,431.53x = 29,478,768.39
  5. Step 5: Solve for x
    x = 29,478,768.39/5,431.53
  6. Step 6: Final answer
    x = 5,427.34

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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.