Home / 4,372.10-6,555.61-2,987.11

Finding the Fourth Proportional to 4,372.10, 6,555.61 and 2,987.11

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Solution

The fourth proportional to 4,372.10, 6,555.61 and 2,987.11 is: 4,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,372.10 : 6,555.61 = 2,987.11 : x
  2. Step 2: Convert to fraction form
    4,372.10/6,555.61 = 2,987.11/x
  3. Step 3: Cross multiply
    4,372.10x = 6,555.61 × 2,987.11
  4. Step 4: Simplify right side
    4,372.10x = 19,582,328.19
  5. Step 5: Solve for x
    x = 19,582,328.19/4,372.10
  6. Step 6: Final answer
    x = 4,478.93

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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.