Home / 3,389.40-4,698.54-3,328.74

Finding the Fourth Proportional to 3,389.40, 4,698.54 and 3,328.74

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Solution

The fourth proportional to 3,389.40, 4,698.54 and 3,328.74 is: 4,614.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.40 : 4,698.54 = 3,328.74 : x
  2. Step 2: Convert to fraction form
    3,389.40/4,698.54 = 3,328.74/x
  3. Step 3: Cross multiply
    3,389.40x = 4,698.54 × 3,328.74
  4. Step 4: Simplify right side
    3,389.40x = 15,640,218.04
  5. Step 5: Solve for x
    x = 15,640,218.04/3,389.40
  6. Step 6: Final answer
    x = 4,614.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.