Home / 2,564.16-3,538.58-1,555.71

Finding the Fourth Proportional to 2,564.16, 3,538.58 and 1,555.71

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Solution

The fourth proportional to 2,564.16, 3,538.58 and 1,555.71 is: 2,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,564.16 : 3,538.58 = 1,555.71 : x
  2. Step 2: Convert to fraction form
    2,564.16/3,538.58 = 1,555.71/x
  3. Step 3: Cross multiply
    2,564.16x = 3,538.58 × 1,555.71
  4. Step 4: Simplify right side
    2,564.16x = 5,504,996.51
  5. Step 5: Solve for x
    x = 5,504,996.51/2,564.16
  6. Step 6: Final answer
    x = 2,146.90

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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.