Home / 2,011.24-2,775.48-1,127.02

Finding the Fourth Proportional to 2,011.24, 2,775.48 and 1,127.02

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Solution

The fourth proportional to 2,011.24, 2,775.48 and 1,127.02 is: 1,555.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.24 : 2,775.48 = 1,127.02 : x
  2. Step 2: Convert to fraction form
    2,011.24/2,775.48 = 1,127.02/x
  3. Step 3: Cross multiply
    2,011.24x = 2,775.48 × 1,127.02
  4. Step 4: Simplify right side
    2,011.24x = 3,128,021.47
  5. Step 5: Solve for x
    x = 3,128,021.47/2,011.24
  6. Step 6: Final answer
    x = 1,555.27

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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.