Home / 2,861.58-3,948.60-1,602.51

Finding the Fourth Proportional to 2,861.58, 3,948.60 and 1,602.51

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Solution

The fourth proportional to 2,861.58, 3,948.60 and 1,602.51 is: 2,211.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.58 : 3,948.60 = 1,602.51 : x
  2. Step 2: Convert to fraction form
    2,861.58/3,948.60 = 1,602.51/x
  3. Step 3: Cross multiply
    2,861.58x = 3,948.60 × 1,602.51
  4. Step 4: Simplify right side
    2,861.58x = 6,327,670.99
  5. Step 5: Solve for x
    x = 6,327,670.99/2,861.58
  6. Step 6: Final answer
    x = 2,211.25

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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.