Home / 4,319.78-5,961.28-2,431.32

Finding the Fourth Proportional to 4,319.78, 5,961.28 and 2,431.32

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Solution

The fourth proportional to 4,319.78, 5,961.28 and 2,431.32 is: 3,355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.78 : 5,961.28 = 2,431.32 : x
  2. Step 2: Convert to fraction form
    4,319.78/5,961.28 = 2,431.32/x
  3. Step 3: Cross multiply
    4,319.78x = 5,961.28 × 2,431.32
  4. Step 4: Simplify right side
    4,319.78x = 14,493,779.29
  5. Step 5: Solve for x
    x = 14,493,779.29/4,319.78
  6. Step 6: Final answer
    x = 3,355.21

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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.