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Finding the Fourth Proportional to 4,547.34, 6,806.88 and 2,905.20

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Solution

The fourth proportional to 4,547.34, 6,806.88 and 2,905.20 is: 4,348.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,547.34 : 6,806.88 = 2,905.20 : x
  2. Step 2: Convert to fraction form
    4,547.34/6,806.88 = 2,905.20/x
  3. Step 3: Cross multiply
    4,547.34x = 6,806.88 × 2,905.20
  4. Step 4: Simplify right side
    4,547.34x = 19,775,347.78
  5. Step 5: Solve for x
    x = 19,775,347.78/4,547.34
  6. Step 6: Final answer
    x = 4,348.77

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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.