Home / 7,479.60-11,220.36-2,547.91

Finding the Fourth Proportional to 7,479.60, 11,220.36 and 2,547.91

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Solution

The fourth proportional to 7,479.60, 11,220.36 and 2,547.91 is: 3,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.60 : 11,220.36 = 2,547.91 : x
  2. Step 2: Convert to fraction form
    7,479.60/11,220.36 = 2,547.91/x
  3. Step 3: Cross multiply
    7,479.60x = 11,220.36 × 2,547.91
  4. Step 4: Simplify right side
    7,479.60x = 28,588,467.45
  5. Step 5: Solve for x
    x = 28,588,467.45/7,479.60
  6. Step 6: Final answer
    x = 3,822.19

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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.