Home / 3,506.86-5,260.08-1,315.40

Finding the Fourth Proportional to 3,506.86, 5,260.08 and 1,315.40

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Solution

The fourth proportional to 3,506.86, 5,260.08 and 1,315.40 is: 1,973.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.86 : 5,260.08 = 1,315.40 : x
  2. Step 2: Convert to fraction form
    3,506.86/5,260.08 = 1,315.40/x
  3. Step 3: Cross multiply
    3,506.86x = 5,260.08 × 1,315.40
  4. Step 4: Simplify right side
    3,506.86x = 6,919,122.38
  5. Step 5: Solve for x
    x = 6,919,122.38/3,506.86
  6. Step 6: Final answer
    x = 1,973.03

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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.