Home / 1,585.60-2,188.19-867.83

Finding the Fourth Proportional to 1,585.60, 2,188.19 and 867.83

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Solution

The fourth proportional to 1,585.60, 2,188.19 and 867.83 is: 1,197.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.60 : 2,188.19 = 867.83 : x
  2. Step 2: Convert to fraction form
    1,585.60/2,188.19 = 867.83/x
  3. Step 3: Cross multiply
    1,585.60x = 2,188.19 × 867.83
  4. Step 4: Simplify right side
    1,585.60x = 1,898,982.32
  5. Step 5: Solve for x
    x = 1,898,982.32/1,585.60
  6. Step 6: Final answer
    x = 1,197.64

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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.