Home / 2,011.30-2,999.11-1,877.24

Finding the Fourth Proportional to 2,011.30, 2,999.11 and 1,877.24

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Solution

The fourth proportional to 2,011.30, 2,999.11 and 1,877.24 is: 2,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.30 : 2,999.11 = 1,877.24 : x
  2. Step 2: Convert to fraction form
    2,011.30/2,999.11 = 1,877.24/x
  3. Step 3: Cross multiply
    2,011.30x = 2,999.11 × 1,877.24
  4. Step 4: Simplify right side
    2,011.30x = 5,630,055.58
  5. Step 5: Solve for x
    x = 5,630,055.58/2,011.30
  6. Step 6: Final answer
    x = 2,799.22

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.