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Finding the Fourth Proportional to 5,339.59, 7,372.09 and 4,779.08

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Solution

The fourth proportional to 5,339.59, 7,372.09 and 4,779.08 is: 6,598.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.59 : 7,372.09 = 4,779.08 : x
  2. Step 2: Convert to fraction form
    5,339.59/7,372.09 = 4,779.08/x
  3. Step 3: Cross multiply
    5,339.59x = 7,372.09 × 4,779.08
  4. Step 4: Simplify right side
    5,339.59x = 35,231,807.88
  5. Step 5: Solve for x
    x = 35,231,807.88/5,339.59
  6. Step 6: Final answer
    x = 6,598.22

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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.