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Finding the Fourth Proportional to 2,565.60, 3,848.80 and 833.68

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Solution

The fourth proportional to 2,565.60, 3,848.80 and 833.68 is: 1,250.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.60 : 3,848.80 = 833.68 : x
  2. Step 2: Convert to fraction form
    2,565.60/3,848.80 = 833.68/x
  3. Step 3: Cross multiply
    2,565.60x = 3,848.80 × 833.68
  4. Step 4: Simplify right side
    2,565.60x = 3,208,667.58
  5. Step 5: Solve for x
    x = 3,208,667.58/2,565.60
  6. Step 6: Final answer
    x = 1,250.65

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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.