Home / 7,124.96-10,688.15-1,860.77

Finding the Fourth Proportional to 7,124.96, 10,688.15 and 1,860.77

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Solution

The fourth proportional to 7,124.96, 10,688.15 and 1,860.77 is: 2,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.96 : 10,688.15 = 1,860.77 : x
  2. Step 2: Convert to fraction form
    7,124.96/10,688.15 = 1,860.77/x
  3. Step 3: Cross multiply
    7,124.96x = 10,688.15 × 1,860.77
  4. Step 4: Simplify right side
    7,124.96x = 19,888,220.25
  5. Step 5: Solve for x
    x = 19,888,220.25/7,124.96
  6. Step 6: Final answer
    x = 2,791.34

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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.