Home / 2,405.95-3,320.37-1,358.08

Finding the Fourth Proportional to 2,405.95, 3,320.37 and 1,358.08

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Solution

The fourth proportional to 2,405.95, 3,320.37 and 1,358.08 is: 1,874.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.95 : 3,320.37 = 1,358.08 : x
  2. Step 2: Convert to fraction form
    2,405.95/3,320.37 = 1,358.08/x
  3. Step 3: Cross multiply
    2,405.95x = 3,320.37 × 1,358.08
  4. Step 4: Simplify right side
    2,405.95x = 4,509,319.79
  5. Step 5: Solve for x
    x = 4,509,319.79/2,405.95
  6. Step 6: Final answer
    x = 1,874.24

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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.