Home / 4,719.40-7,064.70-2,765.80

Finding the Fourth Proportional to 4,719.40, 7,064.70 and 2,765.80

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Solution

The fourth proportional to 4,719.40, 7,064.70 and 2,765.80 is: 4,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.40 : 7,064.70 = 2,765.80 : x
  2. Step 2: Convert to fraction form
    4,719.40/7,064.70 = 2,765.80/x
  3. Step 3: Cross multiply
    4,719.40x = 7,064.70 × 2,765.80
  4. Step 4: Simplify right side
    4,719.40x = 19,539,547.26
  5. Step 5: Solve for x
    x = 19,539,547.26/4,719.40
  6. Step 6: Final answer
    x = 4,140.26

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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.