Home / 3,435.91-4,740.66-2,987.06

Finding the Fourth Proportional to 3,435.91, 4,740.66 and 2,987.06

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Solution

The fourth proportional to 3,435.91, 4,740.66 and 2,987.06 is: 4,121.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.91 : 4,740.66 = 2,987.06 : x
  2. Step 2: Convert to fraction form
    3,435.91/4,740.66 = 2,987.06/x
  3. Step 3: Cross multiply
    3,435.91x = 4,740.66 × 2,987.06
  4. Step 4: Simplify right side
    3,435.91x = 14,160,612.16
  5. Step 5: Solve for x
    x = 14,160,612.16/3,435.91
  6. Step 6: Final answer
    x = 4,121.36

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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.