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Finding the Fourth Proportional to 4,848, 6,690.51 and 2,859.72

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Solution

The fourth proportional to 4,848, 6,690.51 and 2,859.72 is: 3,946.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,848 : 6,690.51 = 2,859.72 : x
  2. Step 2: Convert to fraction form
    4,848/6,690.51 = 2,859.72/x
  3. Step 3: Cross multiply
    4,848x = 6,690.51 × 2,859.72
  4. Step 4: Simplify right side
    4,848x = 19,132,985.26
  5. Step 5: Solve for x
    x = 19,132,985.26/4,848
  6. Step 6: Final answer
    x = 3,946.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.