Home / 5,645.63-7,790.54-3,127.55

Finding the Fourth Proportional to 5,645.63, 7,790.54 and 3,127.55

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Solution

The fourth proportional to 5,645.63, 7,790.54 and 3,127.55 is: 4,315.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.63 : 7,790.54 = 3,127.55 : x
  2. Step 2: Convert to fraction form
    5,645.63/7,790.54 = 3,127.55/x
  3. Step 3: Cross multiply
    5,645.63x = 7,790.54 × 3,127.55
  4. Step 4: Simplify right side
    5,645.63x = 24,365,248.79
  5. Step 5: Solve for x
    x = 24,365,248.79/5,645.63
  6. Step 6: Final answer
    x = 4,315.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.