Home / 5,625.64-8,431.08-4,891.72

Finding the Fourth Proportional to 5,625.64, 8,431.08 and 4,891.72

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Solution

The fourth proportional to 5,625.64, 8,431.08 and 4,891.72 is: 7,331.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625.64 : 8,431.08 = 4,891.72 : x
  2. Step 2: Convert to fraction form
    5,625.64/8,431.08 = 4,891.72/x
  3. Step 3: Cross multiply
    5,625.64x = 8,431.08 × 4,891.72
  4. Step 4: Simplify right side
    5,625.64x = 41,242,482.66
  5. Step 5: Solve for x
    x = 41,242,482.66/5,625.64
  6. Step 6: Final answer
    x = 7,331.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.