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Finding the Fourth Proportional to 6,360.44, 8,779.74 and 4,785.80

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Solution

The fourth proportional to 6,360.44, 8,779.74 and 4,785.80 is: 6,606.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,360.44 : 8,779.74 = 4,785.80 : x
  2. Step 2: Convert to fraction form
    6,360.44/8,779.74 = 4,785.80/x
  3. Step 3: Cross multiply
    6,360.44x = 8,779.74 × 4,785.80
  4. Step 4: Simplify right side
    6,360.44x = 42,018,079.69
  5. Step 5: Solve for x
    x = 42,018,079.69/6,360.44
  6. Step 6: Final answer
    x = 6,606.16

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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.