Home / 2,561.49-3,534.39-1,513.80

Finding the Fourth Proportional to 2,561.49, 3,534.39 and 1,513.80

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Solution

The fourth proportional to 2,561.49, 3,534.39 and 1,513.80 is: 2,088.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.49 : 3,534.39 = 1,513.80 : x
  2. Step 2: Convert to fraction form
    2,561.49/3,534.39 = 1,513.80/x
  3. Step 3: Cross multiply
    2,561.49x = 3,534.39 × 1,513.80
  4. Step 4: Simplify right side
    2,561.49x = 5,350,359.58
  5. Step 5: Solve for x
    x = 5,350,359.58/2,561.49
  6. Step 6: Final answer
    x = 2,088.77

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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.