Home / 5,148.26-7,119.56-5,054.81

Finding the Fourth Proportional to 5,148.26, 7,119.56 and 5,054.81

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Solution

The fourth proportional to 5,148.26, 7,119.56 and 5,054.81 is: 6,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.26 : 7,119.56 = 5,054.81 : x
  2. Step 2: Convert to fraction form
    5,148.26/7,119.56 = 5,054.81/x
  3. Step 3: Cross multiply
    5,148.26x = 7,119.56 × 5,054.81
  4. Step 4: Simplify right side
    5,148.26x = 35,988,000.12
  5. Step 5: Solve for x
    x = 35,988,000.12/5,148.26
  6. Step 6: Final answer
    x = 6,990.32

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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.