Home / 5,290.11-7,935.77-1,779.98

Finding the Fourth Proportional to 5,290.11, 7,935.77 and 1,779.98

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Solution

The fourth proportional to 5,290.11, 7,935.77 and 1,779.98 is: 2,670.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.11 : 7,935.77 = 1,779.98 : x
  2. Step 2: Convert to fraction form
    5,290.11/7,935.77 = 1,779.98/x
  3. Step 3: Cross multiply
    5,290.11x = 7,935.77 × 1,779.98
  4. Step 4: Simplify right side
    5,290.11x = 14,125,476.66
  5. Step 5: Solve for x
    x = 14,125,476.66/5,290.11
  6. Step 6: Final answer
    x = 2,670.17

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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.