Home / 4,617.60-6,918.80-2,666.40

Finding the Fourth Proportional to 4,617.60, 6,918.80 and 2,666.40

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Solution

The fourth proportional to 4,617.60, 6,918.80 and 2,666.40 is: 3,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,617.60 : 6,918.80 = 2,666.40 : x
  2. Step 2: Convert to fraction form
    4,617.60/6,918.80 = 2,666.40/x
  3. Step 3: Cross multiply
    4,617.60x = 6,918.80 × 2,666.40
  4. Step 4: Simplify right side
    4,617.60x = 18,448,288.32
  5. Step 5: Solve for x
    x = 18,448,288.32/4,617.60
  6. Step 6: Final answer
    x = 3,995.21

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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.