Home / 4,756.60-7,137.44-1,985.16

Finding the Fourth Proportional to 4,756.60, 7,137.44 and 1,985.16

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Solution

The fourth proportional to 4,756.60, 7,137.44 and 1,985.16 is: 2,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,756.60 : 7,137.44 = 1,985.16 : x
  2. Step 2: Convert to fraction form
    4,756.60/7,137.44 = 1,985.16/x
  3. Step 3: Cross multiply
    4,756.60x = 7,137.44 × 1,985.16
  4. Step 4: Simplify right side
    4,756.60x = 14,168,960.39
  5. Step 5: Solve for x
    x = 14,168,960.39/4,756.60
  6. Step 6: Final answer
    x = 2,978.80

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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.