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Finding the Fourth Proportional to 4,699, 7,051.09 and 2,620.17

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Solution

The fourth proportional to 4,699, 7,051.09 and 2,620.17 is: 3,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699 : 7,051.09 = 2,620.17 : x
  2. Step 2: Convert to fraction form
    4,699/7,051.09 = 2,620.17/x
  3. Step 3: Cross multiply
    4,699x = 7,051.09 × 2,620.17
  4. Step 4: Simplify right side
    4,699x = 18,475,054.49
  5. Step 5: Solve for x
    x = 18,475,054.49/4,699
  6. Step 6: Final answer
    x = 3,931.70

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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.