Home / 7,315.30-10,968.90-2,382.40

Finding the Fourth Proportional to 7,315.30, 10,968.90 and 2,382.40

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Solution

The fourth proportional to 7,315.30, 10,968.90 and 2,382.40 is: 3,572.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.30 : 10,968.90 = 2,382.40 : x
  2. Step 2: Convert to fraction form
    7,315.30/10,968.90 = 2,382.40/x
  3. Step 3: Cross multiply
    7,315.30x = 10,968.90 × 2,382.40
  4. Step 4: Simplify right side
    7,315.30x = 26,132,307.36
  5. Step 5: Solve for x
    x = 26,132,307.36/7,315.30
  6. Step 6: Final answer
    x = 3,572.28

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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.