Home / 7,578.04-10,456.95-4,220.74

Finding the Fourth Proportional to 7,578.04, 10,456.95 and 4,220.74

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Solution

The fourth proportional to 7,578.04, 10,456.95 and 4,220.74 is: 5,824.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.04 : 10,456.95 = 4,220.74 : x
  2. Step 2: Convert to fraction form
    7,578.04/10,456.95 = 4,220.74/x
  3. Step 3: Cross multiply
    7,578.04x = 10,456.95 × 4,220.74
  4. Step 4: Simplify right side
    7,578.04x = 44,136,067.14
  5. Step 5: Solve for x
    x = 44,136,067.14/7,578.04
  6. Step 6: Final answer
    x = 5,824.21

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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.