Home / 5,640.16-8,460.04-1,480.14

Finding the Fourth Proportional to 5,640.16, 8,460.04 and 1,480.14

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Solution

The fourth proportional to 5,640.16, 8,460.04 and 1,480.14 is: 2,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.16 : 8,460.04 = 1,480.14 : x
  2. Step 2: Convert to fraction form
    5,640.16/8,460.04 = 1,480.14/x
  3. Step 3: Cross multiply
    5,640.16x = 8,460.04 × 1,480.14
  4. Step 4: Simplify right side
    5,640.16x = 12,522,043.61
  5. Step 5: Solve for x
    x = 12,522,043.61/5,640.16
  6. Step 6: Final answer
    x = 2,220.16

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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.