Home / 2,048.80-2,827.34-1,117.30

Finding the Fourth Proportional to 2,048.80, 2,827.34 and 1,117.30

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Solution

The fourth proportional to 2,048.80, 2,827.34 and 1,117.30 is: 1,541.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.80 : 2,827.34 = 1,117.30 : x
  2. Step 2: Convert to fraction form
    2,048.80/2,827.34 = 1,117.30/x
  3. Step 3: Cross multiply
    2,048.80x = 2,827.34 × 1,117.30
  4. Step 4: Simplify right side
    2,048.80x = 3,158,998.06
  5. Step 5: Solve for x
    x = 3,158,998.06/2,048.80
  6. Step 6: Final answer
    x = 1,541.88

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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.