Home / 2,477.46-3,420.45-1,861.14

Finding the Fourth Proportional to 2,477.46, 3,420.45 and 1,861.14

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Solution

The fourth proportional to 2,477.46, 3,420.45 and 1,861.14 is: 2,569.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.46 : 3,420.45 = 1,861.14 : x
  2. Step 2: Convert to fraction form
    2,477.46/3,420.45 = 1,861.14/x
  3. Step 3: Cross multiply
    2,477.46x = 3,420.45 × 1,861.14
  4. Step 4: Simplify right side
    2,477.46x = 6,365,936.31
  5. Step 5: Solve for x
    x = 6,365,936.31/2,477.46
  6. Step 6: Final answer
    x = 2,569.54

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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.