Home / 5,251.69-7,878.80-1,503.53

Finding the Fourth Proportional to 5,251.69, 7,878.80 and 1,503.53

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Solution

The fourth proportional to 5,251.69, 7,878.80 and 1,503.53 is: 2,255.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.69 : 7,878.80 = 1,503.53 : x
  2. Step 2: Convert to fraction form
    5,251.69/7,878.80 = 1,503.53/x
  3. Step 3: Cross multiply
    5,251.69x = 7,878.80 × 1,503.53
  4. Step 4: Simplify right side
    5,251.69x = 11,845,970.89
  5. Step 5: Solve for x
    x = 11,845,970.89/5,251.69
  6. Step 6: Final answer
    x = 2,255.65

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1.5x scale

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.