Home / 2,564.32-3,535.80-2,190.16

Finding the Fourth Proportional to 2,564.32, 3,535.80 and 2,190.16

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Solution

The fourth proportional to 2,564.32, 3,535.80 and 2,190.16 is: 3,019.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,564.32 : 3,535.80 = 2,190.16 : x
  2. Step 2: Convert to fraction form
    2,564.32/3,535.80 = 2,190.16/x
  3. Step 3: Cross multiply
    2,564.32x = 3,535.80 × 2,190.16
  4. Step 4: Simplify right side
    2,564.32x = 7,743,967.73
  5. Step 5: Solve for x
    x = 7,743,967.73/2,564.32
  6. Step 6: Final answer
    x = 3,019.89

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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.