Home / 4,884.17-7,319.93-3,128.49

Finding the Fourth Proportional to 4,884.17, 7,319.93 and 3,128.49

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Solution

The fourth proportional to 4,884.17, 7,319.93 and 3,128.49 is: 4,688.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,884.17 : 7,319.93 = 3,128.49 : x
  2. Step 2: Convert to fraction form
    4,884.17/7,319.93 = 3,128.49/x
  3. Step 3: Cross multiply
    4,884.17x = 7,319.93 × 3,128.49
  4. Step 4: Simplify right side
    4,884.17x = 22,900,312.16
  5. Step 5: Solve for x
    x = 22,900,312.16/4,884.17
  6. Step 6: Final answer
    x = 4,688.69

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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.