Home / 2,405.09-3,319.55-1,564.33

Finding the Fourth Proportional to 2,405.09, 3,319.55 and 1,564.33

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Solution

The fourth proportional to 2,405.09, 3,319.55 and 1,564.33 is: 2,159.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.09 : 3,319.55 = 1,564.33 : x
  2. Step 2: Convert to fraction form
    2,405.09/3,319.55 = 1,564.33/x
  3. Step 3: Cross multiply
    2,405.09x = 3,319.55 × 1,564.33
  4. Step 4: Simplify right side
    2,405.09x = 5,192,871.65
  5. Step 5: Solve for x
    x = 5,192,871.65/2,405.09
  6. Step 6: Final answer
    x = 2,159.12

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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.