Home / 7,275.12-10,039.40-4,131.08

Finding the Fourth Proportional to 7,275.12, 10,039.40 and 4,131.08

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Solution

The fourth proportional to 7,275.12, 10,039.40 and 4,131.08 is: 5,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.12 : 10,039.40 = 4,131.08 : x
  2. Step 2: Convert to fraction form
    7,275.12/10,039.40 = 4,131.08/x
  3. Step 3: Cross multiply
    7,275.12x = 10,039.40 × 4,131.08
  4. Step 4: Simplify right side
    7,275.12x = 41,473,564.55
  5. Step 5: Solve for x
    x = 41,473,564.55/7,275.12
  6. Step 6: Final answer
    x = 5,700.74

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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.