Home / 5,259.04-7,257.20-2,990.08

Finding the Fourth Proportional to 5,259.04, 7,257.20 and 2,990.08

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Solution

The fourth proportional to 5,259.04, 7,257.20 and 2,990.08 is: 4,126.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.04 : 7,257.20 = 2,990.08 : x
  2. Step 2: Convert to fraction form
    5,259.04/7,257.20 = 2,990.08/x
  3. Step 3: Cross multiply
    5,259.04x = 7,257.20 × 2,990.08
  4. Step 4: Simplify right side
    5,259.04x = 21,699,608.58
  5. Step 5: Solve for x
    x = 21,699,608.58/5,259.04
  6. Step 6: Final answer
    x = 4,126.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.