Home / 5,688.48-8,521.60-3,215.80

Finding the Fourth Proportional to 5,688.48, 8,521.60 and 3,215.80

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Solution

The fourth proportional to 5,688.48, 8,521.60 and 3,215.80 is: 4,817.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.48 : 8,521.60 = 3,215.80 : x
  2. Step 2: Convert to fraction form
    5,688.48/8,521.60 = 3,215.80/x
  3. Step 3: Cross multiply
    5,688.48x = 8,521.60 × 3,215.80
  4. Step 4: Simplify right side
    5,688.48x = 27,403,761.28
  5. Step 5: Solve for x
    x = 27,403,761.28/5,688.48
  6. Step 6: Final answer
    x = 4,817.41

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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.