Home / 7,331.89-10,118.36-4,145.32

Finding the Fourth Proportional to 7,331.89, 10,118.36 and 4,145.32

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Solution

The fourth proportional to 7,331.89, 10,118.36 and 4,145.32 is: 5,720.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.89 : 10,118.36 = 4,145.32 : x
  2. Step 2: Convert to fraction form
    7,331.89/10,118.36 = 4,145.32/x
  3. Step 3: Cross multiply
    7,331.89x = 10,118.36 × 4,145.32
  4. Step 4: Simplify right side
    7,331.89x = 41,943,840.08
  5. Step 5: Solve for x
    x = 41,943,840.08/7,331.89
  6. Step 6: Final answer
    x = 5,720.74

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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.