Home / 5,457.29-7,530.89-3,219.30

Finding the Fourth Proportional to 5,457.29, 7,530.89 and 3,219.30

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Solution

The fourth proportional to 5,457.29, 7,530.89 and 3,219.30 is: 4,442.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.29 : 7,530.89 = 3,219.30 : x
  2. Step 2: Convert to fraction form
    5,457.29/7,530.89 = 3,219.30/x
  3. Step 3: Cross multiply
    5,457.29x = 7,530.89 × 3,219.30
  4. Step 4: Simplify right side
    5,457.29x = 24,244,178.08
  5. Step 5: Solve for x
    x = 24,244,178.08/5,457.29
  6. Step 6: Final answer
    x = 4,442.53

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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.