Home / 3,054.48-4,217.60-2,345.20

Finding the Fourth Proportional to 3,054.48, 4,217.60 and 2,345.20

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Solution

The fourth proportional to 3,054.48, 4,217.60 and 2,345.20 is: 3,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,054.48 : 4,217.60 = 2,345.20 : x
  2. Step 2: Convert to fraction form
    3,054.48/4,217.60 = 2,345.20/x
  3. Step 3: Cross multiply
    3,054.48x = 4,217.60 × 2,345.20
  4. Step 4: Simplify right side
    3,054.48x = 9,891,115.52
  5. Step 5: Solve for x
    x = 9,891,115.52/3,054.48
  6. Step 6: Final answer
    x = 3,238.23

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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.