Home / 5,275.09-7,275.32-3,386.68

Finding the Fourth Proportional to 5,275.09, 7,275.32 and 3,386.68

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Solution

The fourth proportional to 5,275.09, 7,275.32 and 3,386.68 is: 4,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.09 : 7,275.32 = 3,386.68 : x
  2. Step 2: Convert to fraction form
    5,275.09/7,275.32 = 3,386.68/x
  3. Step 3: Cross multiply
    5,275.09x = 7,275.32 × 3,386.68
  4. Step 4: Simplify right side
    5,275.09x = 24,639,158.32
  5. Step 5: Solve for x
    x = 24,639,158.32/5,275.09
  6. Step 6: Final answer
    x = 4,670.85

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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.