Home / 2,717.80-3,750.64-1,539.12

Finding the Fourth Proportional to 2,717.80, 3,750.64 and 1,539.12

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Solution

The fourth proportional to 2,717.80, 3,750.64 and 1,539.12 is: 2,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.80 : 3,750.64 = 1,539.12 : x
  2. Step 2: Convert to fraction form
    2,717.80/3,750.64 = 1,539.12/x
  3. Step 3: Cross multiply
    2,717.80x = 3,750.64 × 1,539.12
  4. Step 4: Simplify right side
    2,717.80x = 5,772,685.04
  5. Step 5: Solve for x
    x = 5,772,685.04/2,717.80
  6. Step 6: Final answer
    x = 2,124.03

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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.