Home / 4,068.65-5,615.46-2,390.12

Finding the Fourth Proportional to 4,068.65, 5,615.46 and 2,390.12

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Solution

The fourth proportional to 4,068.65, 5,615.46 and 2,390.12 is: 3,298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,068.65 : 5,615.46 = 2,390.12 : x
  2. Step 2: Convert to fraction form
    4,068.65/5,615.46 = 2,390.12/x
  3. Step 3: Cross multiply
    4,068.65x = 5,615.46 × 2,390.12
  4. Step 4: Simplify right side
    4,068.65x = 13,421,595.18
  5. Step 5: Solve for x
    x = 13,421,595.18/4,068.65
  6. Step 6: Final answer
    x = 3,298.79

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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.