Home / 4,305.72-6,458.70-1,386.20

Finding the Fourth Proportional to 4,305.72, 6,458.70 and 1,386.20

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Solution

The fourth proportional to 4,305.72, 6,458.70 and 1,386.20 is: 2,079.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.72 : 6,458.70 = 1,386.20 : x
  2. Step 2: Convert to fraction form
    4,305.72/6,458.70 = 1,386.20/x
  3. Step 3: Cross multiply
    4,305.72x = 6,458.70 × 1,386.20
  4. Step 4: Simplify right side
    4,305.72x = 8,953,049.94
  5. Step 5: Solve for x
    x = 8,953,049.94/4,305.72
  6. Step 6: Final answer
    x = 2,079.34

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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.