Home / 2,175.15-2,999.50-1,861.46

Finding the Fourth Proportional to 2,175.15, 2,999.50 and 1,861.46

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Solution

The fourth proportional to 2,175.15, 2,999.50 and 1,861.46 is: 2,566.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.15 : 2,999.50 = 1,861.46 : x
  2. Step 2: Convert to fraction form
    2,175.15/2,999.50 = 1,861.46/x
  3. Step 3: Cross multiply
    2,175.15x = 2,999.50 × 1,861.46
  4. Step 4: Simplify right side
    2,175.15x = 5,583,449.27
  5. Step 5: Solve for x
    x = 5,583,449.27/2,175.15
  6. Step 6: Final answer
    x = 2,566.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.