Home / 2,888.12-3,985.39-1,629.11

Finding the Fourth Proportional to 2,888.12, 3,985.39 and 1,629.11

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Solution

The fourth proportional to 2,888.12, 3,985.39 and 1,629.11 is: 2,248.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.12 : 3,985.39 = 1,629.11 : x
  2. Step 2: Convert to fraction form
    2,888.12/3,985.39 = 1,629.11/x
  3. Step 3: Cross multiply
    2,888.12x = 3,985.39 × 1,629.11
  4. Step 4: Simplify right side
    2,888.12x = 6,492,638.70
  5. Step 5: Solve for x
    x = 6,492,638.70/2,888.12
  6. Step 6: Final answer
    x = 2,248.05

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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.