Home / 5,780.08-8,670.12-1,397.54

Finding the Fourth Proportional to 5,780.08, 8,670.12 and 1,397.54

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Solution

The fourth proportional to 5,780.08, 8,670.12 and 1,397.54 is: 2,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.08 : 8,670.12 = 1,397.54 : x
  2. Step 2: Convert to fraction form
    5,780.08/8,670.12 = 1,397.54/x
  3. Step 3: Cross multiply
    5,780.08x = 8,670.12 × 1,397.54
  4. Step 4: Simplify right side
    5,780.08x = 12,116,789.17
  5. Step 5: Solve for x
    x = 12,116,789.17/5,780.08
  6. Step 6: Final answer
    x = 2,096.30

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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.