Home / 7,722.13-11,583.16-1,878.74

Finding the Fourth Proportional to 7,722.13, 11,583.16 and 1,878.74

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Solution

The fourth proportional to 7,722.13, 11,583.16 and 1,878.74 is: 2,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.13 : 11,583.16 = 1,878.74 : x
  2. Step 2: Convert to fraction form
    7,722.13/11,583.16 = 1,878.74/x
  3. Step 3: Cross multiply
    7,722.13x = 11,583.16 × 1,878.74
  4. Step 4: Simplify right side
    7,722.13x = 21,761,746.02
  5. Step 5: Solve for x
    x = 21,761,746.02/7,722.13
  6. Step 6: Final answer
    x = 2,818.10

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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.