Home / 2,798.17-3,861.47-1,539.24

Finding the Fourth Proportional to 2,798.17, 3,861.47 and 1,539.24

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Solution

The fourth proportional to 2,798.17, 3,861.47 and 1,539.24 is: 2,124.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.17 : 3,861.47 = 1,539.24 : x
  2. Step 2: Convert to fraction form
    2,798.17/3,861.47 = 1,539.24/x
  3. Step 3: Cross multiply
    2,798.17x = 3,861.47 × 1,539.24
  4. Step 4: Simplify right side
    2,798.17x = 5,943,729.08
  5. Step 5: Solve for x
    x = 5,943,729.08/2,798.17
  6. Step 6: Final answer
    x = 2,124.15

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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.