Home / 3,339.28-4,606.80-2,345.20

Finding the Fourth Proportional to 3,339.28, 4,606.80 and 2,345.20

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Solution

The fourth proportional to 3,339.28, 4,606.80 and 2,345.20 is: 3,235.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.28 : 4,606.80 = 2,345.20 : x
  2. Step 2: Convert to fraction form
    3,339.28/4,606.80 = 2,345.20/x
  3. Step 3: Cross multiply
    3,339.28x = 4,606.80 × 2,345.20
  4. Step 4: Simplify right side
    3,339.28x = 10,803,867.36
  5. Step 5: Solve for x
    x = 10,803,867.36/3,339.28
  6. Step 6: Final answer
    x = 3,235.39

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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.