Home / 2,345.34-3,515.70-1,305.84

Finding the Fourth Proportional to 2,345.34, 3,515.70 and 1,305.84

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Solution

The fourth proportional to 2,345.34, 3,515.70 and 1,305.84 is: 1,957.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.34 : 3,515.70 = 1,305.84 : x
  2. Step 2: Convert to fraction form
    2,345.34/3,515.70 = 1,305.84/x
  3. Step 3: Cross multiply
    2,345.34x = 3,515.70 × 1,305.84
  4. Step 4: Simplify right side
    2,345.34x = 4,590,941.69
  5. Step 5: Solve for x
    x = 4,590,941.69/2,345.34
  6. Step 6: Final answer
    x = 1,957.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.