Home / 2,901.21-4,003.68-1,574.92

Finding the Fourth Proportional to 2,901.21, 4,003.68 and 1,574.92

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Solution

The fourth proportional to 2,901.21, 4,003.68 and 1,574.92 is: 2,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,901.21 : 4,003.68 = 1,574.92 : x
  2. Step 2: Convert to fraction form
    2,901.21/4,003.68 = 1,574.92/x
  3. Step 3: Cross multiply
    2,901.21x = 4,003.68 × 1,574.92
  4. Step 4: Simplify right side
    2,901.21x = 6,305,462.74
  5. Step 5: Solve for x
    x = 6,305,462.74/2,901.21
  6. Step 6: Final answer
    x = 2,173.39

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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.