Home / 4,970.58-7,455.86-1,272.81

Finding the Fourth Proportional to 4,970.58, 7,455.86 and 1,272.81

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Solution

The fourth proportional to 4,970.58, 7,455.86 and 1,272.81 is: 1,909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.58 : 7,455.86 = 1,272.81 : x
  2. Step 2: Convert to fraction form
    4,970.58/7,455.86 = 1,272.81/x
  3. Step 3: Cross multiply
    4,970.58x = 7,455.86 × 1,272.81
  4. Step 4: Simplify right side
    4,970.58x = 9,489,886.80
  5. Step 5: Solve for x
    x = 9,489,886.80/4,970.58
  6. Step 6: Final answer
    x = 1,909.21

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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.