Home / 7,039.96-10,561.08-2,657.80

Finding the Fourth Proportional to 7,039.96, 10,561.08 and 2,657.80

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Solution

The fourth proportional to 7,039.96, 10,561.08 and 2,657.80 is: 3,987.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.96 : 10,561.08 = 2,657.80 : x
  2. Step 2: Convert to fraction form
    7,039.96/10,561.08 = 2,657.80/x
  3. Step 3: Cross multiply
    7,039.96x = 10,561.08 × 2,657.80
  4. Step 4: Simplify right side
    7,039.96x = 28,069,238.42
  5. Step 5: Solve for x
    x = 28,069,238.42/7,039.96
  6. Step 6: Final answer
    x = 3,987.13

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1.5x scale

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.