Home / 5,316.36-7,342.02-3,987.96

Finding the Fourth Proportional to 5,316.36, 7,342.02 and 3,987.96

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Solution

The fourth proportional to 5,316.36, 7,342.02 and 3,987.96 is: 5,507.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.36 : 7,342.02 = 3,987.96 : x
  2. Step 2: Convert to fraction form
    5,316.36/7,342.02 = 3,987.96/x
  3. Step 3: Cross multiply
    5,316.36x = 7,342.02 × 3,987.96
  4. Step 4: Simplify right side
    5,316.36x = 29,279,682.08
  5. Step 5: Solve for x
    x = 29,279,682.08/5,316.36
  6. Step 6: Final answer
    x = 5,507.47

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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.