Home / 2,827.12-3,901.44-1,585.12

Finding the Fourth Proportional to 2,827.12, 3,901.44 and 1,585.12

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Solution

The fourth proportional to 2,827.12, 3,901.44 and 1,585.12 is: 2,187.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.12 : 3,901.44 = 1,585.12 : x
  2. Step 2: Convert to fraction form
    2,827.12/3,901.44 = 1,585.12/x
  3. Step 3: Cross multiply
    2,827.12x = 3,901.44 × 1,585.12
  4. Step 4: Simplify right side
    2,827.12x = 6,184,250.57
  5. Step 5: Solve for x
    x = 6,184,250.57/2,827.12
  6. Step 6: Final answer
    x = 2,187.47

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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.