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Finding the Fourth Proportional to 6,125.30, 8,443.86 and 4,779.40

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Solution

The fourth proportional to 6,125.30, 8,443.86 and 4,779.40 is: 6,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,125.30 : 8,443.86 = 4,779.40 : x
  2. Step 2: Convert to fraction form
    6,125.30/8,443.86 = 4,779.40/x
  3. Step 3: Cross multiply
    6,125.30x = 8,443.86 × 4,779.40
  4. Step 4: Simplify right side
    6,125.30x = 40,356,542.26
  5. Step 5: Solve for x
    x = 40,356,542.26/6,125.30
  6. Step 6: Final answer
    x = 6,588.50

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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.