Home / 10,285.92-15,426.80-2,890.72

Finding the Fourth Proportional to 10,285.92, 15,426.80 and 2,890.72

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Solution

The fourth proportional to 10,285.92, 15,426.80 and 2,890.72 is: 4,335.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.92 : 15,426.80 = 2,890.72 : x
  2. Step 2: Convert to fraction form
    10,285.92/15,426.80 = 2,890.72/x
  3. Step 3: Cross multiply
    10,285.92x = 15,426.80 × 2,890.72
  4. Step 4: Simplify right side
    10,285.92x = 44,594,559.30
  5. Step 5: Solve for x
    x = 44,594,559.30/10,285.92
  6. Step 6: Final answer
    x = 4,335.50

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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.