Home / 5,120.08-7,680.93-1,833.10

Finding the Fourth Proportional to 5,120.08, 7,680.93 and 1,833.10

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Solution

The fourth proportional to 5,120.08, 7,680.93 and 1,833.10 is: 2,749.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.08 : 7,680.93 = 1,833.10 : x
  2. Step 2: Convert to fraction form
    5,120.08/7,680.93 = 1,833.10/x
  3. Step 3: Cross multiply
    5,120.08x = 7,680.93 × 1,833.10
  4. Step 4: Simplify right side
    5,120.08x = 14,079,886.71
  5. Step 5: Solve for x
    x = 14,079,886.71/5,120.08
  6. Step 6: Final answer
    x = 2,749.94

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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.