Home / 7,125.98-10,688.96-1,860.64

Finding the Fourth Proportional to 7,125.98, 10,688.96 and 1,860.64

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Solution

The fourth proportional to 7,125.98, 10,688.96 and 1,860.64 is: 2,790.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.98 : 10,688.96 = 1,860.64 : x
  2. Step 2: Convert to fraction form
    7,125.98/10,688.96 = 1,860.64/x
  3. Step 3: Cross multiply
    7,125.98x = 10,688.96 × 1,860.64
  4. Step 4: Simplify right side
    7,125.98x = 19,888,284.46
  5. Step 5: Solve for x
    x = 19,888,284.46/7,125.98
  6. Step 6: Final answer
    x = 2,790.96

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Similar ratio
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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.