Home / 2,477.35-3,418.91-1,415.17

Finding the Fourth Proportional to 2,477.35, 3,418.91 and 1,415.17

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Solution

The fourth proportional to 2,477.35, 3,418.91 and 1,415.17 is: 1,953.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.35 : 3,418.91 = 1,415.17 : x
  2. Step 2: Convert to fraction form
    2,477.35/3,418.91 = 1,415.17/x
  3. Step 3: Cross multiply
    2,477.35x = 3,418.91 × 1,415.17
  4. Step 4: Simplify right side
    2,477.35x = 4,838,338.86
  5. Step 5: Solve for x
    x = 4,838,338.86/2,477.35
  6. Step 6: Final answer
    x = 1,953.03

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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.