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Finding the Fourth Proportional to 4,397.72, 6,595.86 and 1,319

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Solution

The fourth proportional to 4,397.72, 6,595.86 and 1,319 is: 1,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,397.72 : 6,595.86 = 1,319 : x
  2. Step 2: Convert to fraction form
    4,397.72/6,595.86 = 1,319/x
  3. Step 3: Cross multiply
    4,397.72x = 6,595.86 × 1,319
  4. Step 4: Simplify right side
    4,397.72x = 8,699,939.34
  5. Step 5: Solve for x
    x = 8,699,939.34/4,397.72
  6. Step 6: Final answer
    x = 1,978.28

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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.