Home / 2,977.51-4,109.21-1,651.30

Finding the Fourth Proportional to 2,977.51, 4,109.21 and 1,651.30

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Solution

The fourth proportional to 2,977.51, 4,109.21 and 1,651.30 is: 2,278.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.51 : 4,109.21 = 1,651.30 : x
  2. Step 2: Convert to fraction form
    2,977.51/4,109.21 = 1,651.30/x
  3. Step 3: Cross multiply
    2,977.51x = 4,109.21 × 1,651.30
  4. Step 4: Simplify right side
    2,977.51x = 6,785,530.22
  5. Step 5: Solve for x
    x = 6,785,530.22/2,977.51
  6. Step 6: Final answer
    x = 2,278.93

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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.