Home / 2,829.12-3,903.48-1,649.76

Finding the Fourth Proportional to 2,829.12, 3,903.48 and 1,649.76

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Solution

The fourth proportional to 2,829.12, 3,903.48 and 1,649.76 is: 2,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.12 : 3,903.48 = 1,649.76 : x
  2. Step 2: Convert to fraction form
    2,829.12/3,903.48 = 1,649.76/x
  3. Step 3: Cross multiply
    2,829.12x = 3,903.48 × 1,649.76
  4. Step 4: Simplify right side
    2,829.12x = 6,439,805.16
  5. Step 5: Solve for x
    x = 6,439,805.16/2,829.12
  6. Step 6: Final answer
    x = 2,276.26

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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.