Home / 5,518.02-7,615.30-3,160.92

Finding the Fourth Proportional to 5,518.02, 7,615.30 and 3,160.92

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Solution

The fourth proportional to 5,518.02, 7,615.30 and 3,160.92 is: 4,362.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.02 : 7,615.30 = 3,160.92 : x
  2. Step 2: Convert to fraction form
    5,518.02/7,615.30 = 3,160.92/x
  3. Step 3: Cross multiply
    5,518.02x = 7,615.30 × 3,160.92
  4. Step 4: Simplify right side
    5,518.02x = 24,071,354.08
  5. Step 5: Solve for x
    x = 24,071,354.08/5,518.02
  6. Step 6: Final answer
    x = 4,362.32

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Double scale
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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.