Home / 7,479.66-10,322.38-4,122.46

Finding the Fourth Proportional to 7,479.66, 10,322.38 and 4,122.46

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Solution

The fourth proportional to 7,479.66, 10,322.38 and 4,122.46 is: 5,689.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.66 : 10,322.38 = 4,122.46 : x
  2. Step 2: Convert to fraction form
    7,479.66/10,322.38 = 4,122.46/x
  3. Step 3: Cross multiply
    7,479.66x = 10,322.38 × 4,122.46
  4. Step 4: Simplify right side
    7,479.66x = 42,553,598.65
  5. Step 5: Solve for x
    x = 42,553,598.65/7,479.66
  6. Step 6: Final answer
    x = 5,689.24

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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.