Home / 5,690.77-8,538.15-2,918.74

Finding the Fourth Proportional to 5,690.77, 8,538.15 and 2,918.74

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Solution

The fourth proportional to 5,690.77, 8,538.15 and 2,918.74 is: 4,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.77 : 8,538.15 = 2,918.74 : x
  2. Step 2: Convert to fraction form
    5,690.77/8,538.15 = 2,918.74/x
  3. Step 3: Cross multiply
    5,690.77x = 8,538.15 × 2,918.74
  4. Step 4: Simplify right side
    5,690.77x = 24,920,639.93
  5. Step 5: Solve for x
    x = 24,920,639.93/5,690.77
  6. Step 6: Final answer
    x = 4,379.13

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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.