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Finding the Fourth Proportional to 4,607.77, 6,913.68 and 1,686.51

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Solution

The fourth proportional to 4,607.77, 6,913.68 and 1,686.51 is: 2,530.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,607.77 : 6,913.68 = 1,686.51 : x
  2. Step 2: Convert to fraction form
    4,607.77/6,913.68 = 1,686.51/x
  3. Step 3: Cross multiply
    4,607.77x = 6,913.68 × 1,686.51
  4. Step 4: Simplify right side
    4,607.77x = 11,659,990.46
  5. Step 5: Solve for x
    x = 11,659,990.46/4,607.77
  6. Step 6: Final answer
    x = 2,530.51

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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.