Home / 5,417.23-7,479-3,429.49

Finding the Fourth Proportional to 5,417.23, 7,479 and 3,429.49

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Solution

The fourth proportional to 5,417.23, 7,479 and 3,429.49 is: 4,734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.23 : 7,479 = 3,429.49 : x
  2. Step 2: Convert to fraction form
    5,417.23/7,479 = 3,429.49/x
  3. Step 3: Cross multiply
    5,417.23x = 7,479 × 3,429.49
  4. Step 4: Simplify right side
    5,417.23x = 25,649,155.71
  5. Step 5: Solve for x
    x = 25,649,155.71/5,417.23
  6. Step 6: Final answer
    x = 4,734.74

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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.