Home / 2,702.08-4,054.38-2,658.40

Finding the Fourth Proportional to 2,702.08, 4,054.38 and 2,658.40

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Solution

The fourth proportional to 2,702.08, 4,054.38 and 2,658.40 is: 3,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.08 : 4,054.38 = 2,658.40 : x
  2. Step 2: Convert to fraction form
    2,702.08/4,054.38 = 2,658.40/x
  3. Step 3: Cross multiply
    2,702.08x = 4,054.38 × 2,658.40
  4. Step 4: Simplify right side
    2,702.08x = 10,778,163.79
  5. Step 5: Solve for x
    x = 10,778,163.79/2,702.08
  6. Step 6: Final answer
    x = 3,988.84

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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.