Home / 5,379.66-8,070.12-1,681.83

Finding the Fourth Proportional to 5,379.66, 8,070.12 and 1,681.83

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Solution

The fourth proportional to 5,379.66, 8,070.12 and 1,681.83 is: 2,522.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.66 : 8,070.12 = 1,681.83 : x
  2. Step 2: Convert to fraction form
    5,379.66/8,070.12 = 1,681.83/x
  3. Step 3: Cross multiply
    5,379.66x = 8,070.12 × 1,681.83
  4. Step 4: Simplify right side
    5,379.66x = 13,572,569.92
  5. Step 5: Solve for x
    x = 13,572,569.92/5,379.66
  6. Step 6: Final answer
    x = 2,522.94

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1.5x scale

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.