Home / 5,578.20-7,701.48-4,395.60

Finding the Fourth Proportional to 5,578.20, 7,701.48 and 4,395.60

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Solution

The fourth proportional to 5,578.20, 7,701.48 and 4,395.60 is: 6,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.20 : 7,701.48 = 4,395.60 : x
  2. Step 2: Convert to fraction form
    5,578.20/7,701.48 = 4,395.60/x
  3. Step 3: Cross multiply
    5,578.20x = 7,701.48 × 4,395.60
  4. Step 4: Simplify right side
    5,578.20x = 33,852,625.49
  5. Step 5: Solve for x
    x = 33,852,625.49/5,578.20
  6. Step 6: Final answer
    x = 6,068.74

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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.