Home / 4,655.12-6,985.71-4,279.68

Finding the Fourth Proportional to 4,655.12, 6,985.71 and 4,279.68

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Solution

The fourth proportional to 4,655.12, 6,985.71 and 4,279.68 is: 6,422.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,655.12 : 6,985.71 = 4,279.68 : x
  2. Step 2: Convert to fraction form
    4,655.12/6,985.71 = 4,279.68/x
  3. Step 3: Cross multiply
    4,655.12x = 6,985.71 × 4,279.68
  4. Step 4: Simplify right side
    4,655.12x = 29,896,603.37
  5. Step 5: Solve for x
    x = 29,896,603.37/4,655.12
  6. Step 6: Final answer
    x = 6,422.31

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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.