Home / 4,975.76-7,464.40-1,689.04

Finding the Fourth Proportional to 4,975.76, 7,464.40 and 1,689.04

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Solution

The fourth proportional to 4,975.76, 7,464.40 and 1,689.04 is: 2,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.76 : 7,464.40 = 1,689.04 : x
  2. Step 2: Convert to fraction form
    4,975.76/7,464.40 = 1,689.04/x
  3. Step 3: Cross multiply
    4,975.76x = 7,464.40 × 1,689.04
  4. Step 4: Simplify right side
    4,975.76x = 12,607,670.18
  5. Step 5: Solve for x
    x = 12,607,670.18/4,975.76
  6. Step 6: Final answer
    x = 2,533.82

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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.