Home / 10,285.66-15,429.39-2,890.18

Finding the Fourth Proportional to 10,285.66, 15,429.39 and 2,890.18

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Solution

The fourth proportional to 10,285.66, 15,429.39 and 2,890.18 is: 4,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.66 : 15,429.39 = 2,890.18 : x
  2. Step 2: Convert to fraction form
    10,285.66/15,429.39 = 2,890.18/x
  3. Step 3: Cross multiply
    10,285.66x = 15,429.39 × 2,890.18
  4. Step 4: Simplify right side
    10,285.66x = 44,593,714.39
  5. Step 5: Solve for x
    x = 44,593,714.39/10,285.66
  6. Step 6: Final answer
    x = 4,335.52

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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.