Home / 4,120.65-5,685.31-2,526.77

Finding the Fourth Proportional to 4,120.65, 5,685.31 and 2,526.77

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Solution

The fourth proportional to 4,120.65, 5,685.31 and 2,526.77 is: 3,486.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.65 : 5,685.31 = 2,526.77 : x
  2. Step 2: Convert to fraction form
    4,120.65/5,685.31 = 2,526.77/x
  3. Step 3: Cross multiply
    4,120.65x = 5,685.31 × 2,526.77
  4. Step 4: Simplify right side
    4,120.65x = 14,365,470.75
  5. Step 5: Solve for x
    x = 14,365,470.75/4,120.65
  6. Step 6: Final answer
    x = 3,486.21

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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.