Home / 3,055.16-4,210.08-2,168.48

Finding the Fourth Proportional to 3,055.16, 4,210.08 and 2,168.48

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Solution

The fourth proportional to 3,055.16, 4,210.08 and 2,168.48 is: 2,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.16 : 4,210.08 = 2,168.48 : x
  2. Step 2: Convert to fraction form
    3,055.16/4,210.08 = 2,168.48/x
  3. Step 3: Cross multiply
    3,055.16x = 4,210.08 × 2,168.48
  4. Step 4: Simplify right side
    3,055.16x = 9,129,476.67
  5. Step 5: Solve for x
    x = 9,129,476.67/3,055.16
  6. Step 6: Final answer
    x = 2,988.21

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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.