Home / 4,985.59-7,462.58-2,787.65

Finding the Fourth Proportional to 4,985.59, 7,462.58 and 2,787.65

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Solution

The fourth proportional to 4,985.59, 7,462.58 and 2,787.65 is: 4,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.59 : 7,462.58 = 2,787.65 : x
  2. Step 2: Convert to fraction form
    4,985.59/7,462.58 = 2,787.65/x
  3. Step 3: Cross multiply
    4,985.59x = 7,462.58 × 2,787.65
  4. Step 4: Simplify right side
    4,985.59x = 20,803,061.14
  5. Step 5: Solve for x
    x = 20,803,061.14/4,985.59
  6. Step 6: Final answer
    x = 4,172.64

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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.