Home / 2,517.79-3,477.81-2,048.80

Finding the Fourth Proportional to 2,517.79, 3,477.81 and 2,048.80

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Solution

The fourth proportional to 2,517.79, 3,477.81 and 2,048.80 is: 2,830.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.79 : 3,477.81 = 2,048.80 : x
  2. Step 2: Convert to fraction form
    2,517.79/3,477.81 = 2,048.80/x
  3. Step 3: Cross multiply
    2,517.79x = 3,477.81 × 2,048.80
  4. Step 4: Simplify right side
    2,517.79x = 7,125,337.13
  5. Step 5: Solve for x
    x = 7,125,337.13/2,517.79
  6. Step 6: Final answer
    x = 2,830.00

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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.