Home / 3,417.60-4,721.04-3,240.21

Finding the Fourth Proportional to 3,417.60, 4,721.04 and 3,240.21

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Solution

The fourth proportional to 3,417.60, 4,721.04 and 3,240.21 is: 4,476.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.60 : 4,721.04 = 3,240.21 : x
  2. Step 2: Convert to fraction form
    3,417.60/4,721.04 = 3,240.21/x
  3. Step 3: Cross multiply
    3,417.60x = 4,721.04 × 3,240.21
  4. Step 4: Simplify right side
    3,417.60x = 15,297,161.02
  5. Step 5: Solve for x
    x = 15,297,161.02/3,417.60
  6. Step 6: Final answer
    x = 4,476.00

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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.