Home / 2,808.52-3,875.55-1,629.40

Finding the Fourth Proportional to 2,808.52, 3,875.55 and 1,629.40

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Solution

The fourth proportional to 2,808.52, 3,875.55 and 1,629.40 is: 2,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.52 : 3,875.55 = 1,629.40 : x
  2. Step 2: Convert to fraction form
    2,808.52/3,875.55 = 1,629.40/x
  3. Step 3: Cross multiply
    2,808.52x = 3,875.55 × 1,629.40
  4. Step 4: Simplify right side
    2,808.52x = 6,314,821.17
  5. Step 5: Solve for x
    x = 6,314,821.17/2,808.52
  6. Step 6: Final answer
    x = 2,248.45

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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.