Home / 3,641.12-5,460.50-1,175.40

Finding the Fourth Proportional to 3,641.12, 5,460.50 and 1,175.40

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Solution

The fourth proportional to 3,641.12, 5,460.50 and 1,175.40 is: 1,762.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,641.12 : 5,460.50 = 1,175.40 : x
  2. Step 2: Convert to fraction form
    3,641.12/5,460.50 = 1,175.40/x
  3. Step 3: Cross multiply
    3,641.12x = 5,460.50 × 1,175.40
  4. Step 4: Simplify right side
    3,641.12x = 6,418,271.70
  5. Step 5: Solve for x
    x = 6,418,271.70/3,641.12
  6. Step 6: Final answer
    x = 1,762.72

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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.