Home / 4,770.81-7,156.35-1,308.06

Finding the Fourth Proportional to 4,770.81, 7,156.35 and 1,308.06

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Solution

The fourth proportional to 4,770.81, 7,156.35 and 1,308.06 is: 1,962.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770.81 : 7,156.35 = 1,308.06 : x
  2. Step 2: Convert to fraction form
    4,770.81/7,156.35 = 1,308.06/x
  3. Step 3: Cross multiply
    4,770.81x = 7,156.35 × 1,308.06
  4. Step 4: Simplify right side
    4,770.81x = 9,360,935.18
  5. Step 5: Solve for x
    x = 9,360,935.18/4,770.81
  6. Step 6: Final answer
    x = 1,962.13

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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.