Home / 3,130.08-4,319.44-1,732.96

Finding the Fourth Proportional to 3,130.08, 4,319.44 and 1,732.96

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Solution

The fourth proportional to 3,130.08, 4,319.44 and 1,732.96 is: 2,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.08 : 4,319.44 = 1,732.96 : x
  2. Step 2: Convert to fraction form
    3,130.08/4,319.44 = 1,732.96/x
  3. Step 3: Cross multiply
    3,130.08x = 4,319.44 × 1,732.96
  4. Step 4: Simplify right side
    3,130.08x = 7,485,416.74
  5. Step 5: Solve for x
    x = 7,485,416.74/3,130.08
  6. Step 6: Final answer
    x = 2,391.45

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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.