Home / 2,111.52-3,167.28-1,528.32

Finding the Fourth Proportional to 2,111.52, 3,167.28 and 1,528.32

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Solution

The fourth proportional to 2,111.52, 3,167.28 and 1,528.32 is: 2,292.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.52 : 3,167.28 = 1,528.32 : x
  2. Step 2: Convert to fraction form
    2,111.52/3,167.28 = 1,528.32/x
  3. Step 3: Cross multiply
    2,111.52x = 3,167.28 × 1,528.32
  4. Step 4: Simplify right side
    2,111.52x = 4,840,617.37
  5. Step 5: Solve for x
    x = 4,840,617.37/2,111.52
  6. Step 6: Final answer
    x = 2,292.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.