Home / 2,877.06-3,970.14-1,617.72

Finding the Fourth Proportional to 2,877.06, 3,970.14 and 1,617.72

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Solution

The fourth proportional to 2,877.06, 3,970.14 and 1,617.72 is: 2,232.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.06 : 3,970.14 = 1,617.72 : x
  2. Step 2: Convert to fraction form
    2,877.06/3,970.14 = 1,617.72/x
  3. Step 3: Cross multiply
    2,877.06x = 3,970.14 × 1,617.72
  4. Step 4: Simplify right side
    2,877.06x = 6,422,574.88
  5. Step 5: Solve for x
    x = 6,422,574.88/2,877.06
  6. Step 6: Final answer
    x = 2,232.34

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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.