Home / 2,717.87-3,750.45-1,539.05

Finding the Fourth Proportional to 2,717.87, 3,750.45 and 1,539.05

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Solution

The fourth proportional to 2,717.87, 3,750.45 and 1,539.05 is: 2,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.87 : 3,750.45 = 1,539.05 : x
  2. Step 2: Convert to fraction form
    2,717.87/3,750.45 = 1,539.05/x
  3. Step 3: Cross multiply
    2,717.87x = 3,750.45 × 1,539.05
  4. Step 4: Simplify right side
    2,717.87x = 5,772,130.07
  5. Step 5: Solve for x
    x = 5,772,130.07/2,717.87
  6. Step 6: Final answer
    x = 2,123.77

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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.