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Finding the Fourth Proportional to 4,865.63, 7,298.09 and 2,779.07

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Solution

The fourth proportional to 4,865.63, 7,298.09 and 2,779.07 is: 4,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,865.63 : 7,298.09 = 2,779.07 : x
  2. Step 2: Convert to fraction form
    4,865.63/7,298.09 = 2,779.07/x
  3. Step 3: Cross multiply
    4,865.63x = 7,298.09 × 2,779.07
  4. Step 4: Simplify right side
    4,865.63x = 20,281,889.08
  5. Step 5: Solve for x
    x = 20,281,889.08/4,865.63
  6. Step 6: Final answer
    x = 4,168.40

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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.