Home / 4,260.32-6,390.40-3,005.76

Finding the Fourth Proportional to 4,260.32, 6,390.40 and 3,005.76

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Solution

The fourth proportional to 4,260.32, 6,390.40 and 3,005.76 is: 4,508.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.32 : 6,390.40 = 3,005.76 : x
  2. Step 2: Convert to fraction form
    4,260.32/6,390.40 = 3,005.76/x
  3. Step 3: Cross multiply
    4,260.32x = 6,390.40 × 3,005.76
  4. Step 4: Simplify right side
    4,260.32x = 19,208,008.70
  5. Step 5: Solve for x
    x = 19,208,008.70/4,260.32
  6. Step 6: Final answer
    x = 4,508.58

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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.