Home / 4,409.15-6,612.70-1,288.50

Finding the Fourth Proportional to 4,409.15, 6,612.70 and 1,288.50

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Solution

The fourth proportional to 4,409.15, 6,612.70 and 1,288.50 is: 1,932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,409.15 : 6,612.70 = 1,288.50 : x
  2. Step 2: Convert to fraction form
    4,409.15/6,612.70 = 1,288.50/x
  3. Step 3: Cross multiply
    4,409.15x = 6,612.70 × 1,288.50
  4. Step 4: Simplify right side
    4,409.15x = 8,520,463.95
  5. Step 5: Solve for x
    x = 8,520,463.95/4,409.15
  6. Step 6: Final answer
    x = 1,932.45

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Double scale
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Similar ratio
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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.