Home / 4,686.40-7,032.64-2,091.52

Finding the Fourth Proportional to 4,686.40, 7,032.64 and 2,091.52

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Solution

The fourth proportional to 4,686.40, 7,032.64 and 2,091.52 is: 3,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,686.40 : 7,032.64 = 2,091.52 : x
  2. Step 2: Convert to fraction form
    4,686.40/7,032.64 = 2,091.52/x
  3. Step 3: Cross multiply
    4,686.40x = 7,032.64 × 2,091.52
  4. Step 4: Simplify right side
    4,686.40x = 14,708,907.21
  5. Step 5: Solve for x
    x = 14,708,907.21/4,686.40
  6. Step 6: Final answer
    x = 3,138.64

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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.