Home / 5,055.15-7,578.10-4,280.14

Finding the Fourth Proportional to 5,055.15, 7,578.10 and 4,280.14

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Solution

The fourth proportional to 5,055.15, 7,578.10 and 4,280.14 is: 6,416.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.15 : 7,578.10 = 4,280.14 : x
  2. Step 2: Convert to fraction form
    5,055.15/7,578.10 = 4,280.14/x
  3. Step 3: Cross multiply
    5,055.15x = 7,578.10 × 4,280.14
  4. Step 4: Simplify right side
    5,055.15x = 32,435,328.93
  5. Step 5: Solve for x
    x = 32,435,328.93/5,055.15
  6. Step 6: Final answer
    x = 6,416.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.