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Finding the Fourth Proportional to 6,620.74, 9,929.94 and 2,459.77

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Solution

The fourth proportional to 6,620.74, 9,929.94 and 2,459.77 is: 3,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.74 : 9,929.94 = 2,459.77 : x
  2. Step 2: Convert to fraction form
    6,620.74/9,929.94 = 2,459.77/x
  3. Step 3: Cross multiply
    6,620.74x = 9,929.94 × 2,459.77
  4. Step 4: Simplify right side
    6,620.74x = 24,425,368.51
  5. Step 5: Solve for x
    x = 24,425,368.51/6,620.74
  6. Step 6: Final answer
    x = 3,689.22

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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.