Home / 2,549.77-3,518.71-1,415.51

Finding the Fourth Proportional to 2,549.77, 3,518.71 and 1,415.51

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Solution

The fourth proportional to 2,549.77, 3,518.71 and 1,415.51 is: 1,953.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,549.77 : 3,518.71 = 1,415.51 : x
  2. Step 2: Convert to fraction form
    2,549.77/3,518.71 = 1,415.51/x
  3. Step 3: Cross multiply
    2,549.77x = 3,518.71 × 1,415.51
  4. Step 4: Simplify right side
    2,549.77x = 4,980,781.05
  5. Step 5: Solve for x
    x = 4,980,781.05/2,549.77
  6. Step 6: Final answer
    x = 1,953.43

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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.