Home / 5,278.18-7,276.74-3,386.47

Finding the Fourth Proportional to 5,278.18, 7,276.74 and 3,386.47

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Solution

The fourth proportional to 5,278.18, 7,276.74 and 3,386.47 is: 4,668.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.18 : 7,276.74 = 3,386.47 : x
  2. Step 2: Convert to fraction form
    5,278.18/7,276.74 = 3,386.47/x
  3. Step 3: Cross multiply
    5,278.18x = 7,276.74 × 3,386.47
  4. Step 4: Simplify right side
    5,278.18x = 24,642,488.37
  5. Step 5: Solve for x
    x = 24,642,488.37/5,278.18
  6. Step 6: Final answer
    x = 4,668.75

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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.