Home / 2,477.92-3,420.04-1,415.63

Finding the Fourth Proportional to 2,477.92, 3,420.04 and 1,415.63

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Solution

The fourth proportional to 2,477.92, 3,420.04 and 1,415.63 is: 1,953.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.92 : 3,420.04 = 1,415.63 : x
  2. Step 2: Convert to fraction form
    2,477.92/3,420.04 = 1,415.63/x
  3. Step 3: Cross multiply
    2,477.92x = 3,420.04 × 1,415.63
  4. Step 4: Simplify right side
    2,477.92x = 4,841,493.68
  5. Step 5: Solve for x
    x = 4,841,493.68/2,477.92
  6. Step 6: Final answer
    x = 1,953.86

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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.