Home / 2,477.08-3,418.40-1,415.07

Finding the Fourth Proportional to 2,477.08, 3,418.40 and 1,415.07

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Solution

The fourth proportional to 2,477.08, 3,418.40 and 1,415.07 is: 1,952.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.08 : 3,418.40 = 1,415.07 : x
  2. Step 2: Convert to fraction form
    2,477.08/3,418.40 = 1,415.07/x
  3. Step 3: Cross multiply
    2,477.08x = 3,418.40 × 1,415.07
  4. Step 4: Simplify right side
    2,477.08x = 4,837,278.83
  5. Step 5: Solve for x
    x = 4,837,278.83/2,477.08
  6. Step 6: Final answer
    x = 1,952.81

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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.