Home / 5,298.91-7,312.44-3,808.30

Finding the Fourth Proportional to 5,298.91, 7,312.44 and 3,808.30

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Solution

The fourth proportional to 5,298.91, 7,312.44 and 3,808.30 is: 5,255.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.91 : 7,312.44 = 3,808.30 : x
  2. Step 2: Convert to fraction form
    5,298.91/7,312.44 = 3,808.30/x
  3. Step 3: Cross multiply
    5,298.91x = 7,312.44 × 3,808.30
  4. Step 4: Simplify right side
    5,298.91x = 27,847,965.25
  5. Step 5: Solve for x
    x = 27,847,965.25/5,298.91
  6. Step 6: Final answer
    x = 5,255.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.