Home / 5,790.43-8,687.70-2,870.80

Finding the Fourth Proportional to 5,790.43, 8,687.70 and 2,870.80

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Solution

The fourth proportional to 5,790.43, 8,687.70 and 2,870.80 is: 4,307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.43 : 8,687.70 = 2,870.80 : x
  2. Step 2: Convert to fraction form
    5,790.43/8,687.70 = 2,870.80/x
  3. Step 3: Cross multiply
    5,790.43x = 8,687.70 × 2,870.80
  4. Step 4: Simplify right side
    5,790.43x = 24,940,649.16
  5. Step 5: Solve for x
    x = 24,940,649.16/5,790.43
  6. Step 6: Final answer
    x = 4,307.22

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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.