Home / 5,176.50-7,765.56-1,888.98

Finding the Fourth Proportional to 5,176.50, 7,765.56 and 1,888.98

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Solution

The fourth proportional to 5,176.50, 7,765.56 and 1,888.98 is: 2,833.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.50 : 7,765.56 = 1,888.98 : x
  2. Step 2: Convert to fraction form
    5,176.50/7,765.56 = 1,888.98/x
  3. Step 3: Cross multiply
    5,176.50x = 7,765.56 × 1,888.98
  4. Step 4: Simplify right side
    5,176.50x = 14,668,987.53
  5. Step 5: Solve for x
    x = 14,668,987.53/5,176.50
  6. Step 6: Final answer
    x = 2,833.77

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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.