Home / 5,114.91-7,670.55-1,782.30

Finding the Fourth Proportional to 5,114.91, 7,670.55 and 1,782.30

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Solution

The fourth proportional to 5,114.91, 7,670.55 and 1,782.30 is: 2,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.91 : 7,670.55 = 1,782.30 : x
  2. Step 2: Convert to fraction form
    5,114.91/7,670.55 = 1,782.30/x
  3. Step 3: Cross multiply
    5,114.91x = 7,670.55 × 1,782.30
  4. Step 4: Simplify right side
    5,114.91x = 13,671,221.27
  5. Step 5: Solve for x
    x = 13,671,221.27/5,114.91
  6. Step 6: Final answer
    x = 2,672.82

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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.