Home / 5,457.04-7,531.70-3,218.80

Finding the Fourth Proportional to 5,457.04, 7,531.70 and 3,218.80

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Solution

The fourth proportional to 5,457.04, 7,531.70 and 3,218.80 is: 4,442.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.04 : 7,531.70 = 3,218.80 : x
  2. Step 2: Convert to fraction form
    5,457.04/7,531.70 = 3,218.80/x
  3. Step 3: Cross multiply
    5,457.04x = 7,531.70 × 3,218.80
  4. Step 4: Simplify right side
    5,457.04x = 24,243,035.96
  5. Step 5: Solve for x
    x = 24,243,035.96/5,457.04
  6. Step 6: Final answer
    x = 4,442.52

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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.