Home / 4,272.13-6,405.96-1,930.12

Finding the Fourth Proportional to 4,272.13, 6,405.96 and 1,930.12

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Solution

The fourth proportional to 4,272.13, 6,405.96 and 1,930.12 is: 2,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.13 : 6,405.96 = 1,930.12 : x
  2. Step 2: Convert to fraction form
    4,272.13/6,405.96 = 1,930.12/x
  3. Step 3: Cross multiply
    4,272.13x = 6,405.96 × 1,930.12
  4. Step 4: Simplify right side
    4,272.13x = 12,364,271.52
  5. Step 5: Solve for x
    x = 12,364,271.52/4,272.13
  6. Step 6: Final answer
    x = 2,894.17

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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.