Home / 3,955.04-5,457.86-2,186.60

Finding the Fourth Proportional to 3,955.04, 5,457.86 and 2,186.60

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Solution

The fourth proportional to 3,955.04, 5,457.86 and 2,186.60 is: 3,017.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.04 : 5,457.86 = 2,186.60 : x
  2. Step 2: Convert to fraction form
    3,955.04/5,457.86 = 2,186.60/x
  3. Step 3: Cross multiply
    3,955.04x = 5,457.86 × 2,186.60
  4. Step 4: Simplify right side
    3,955.04x = 11,934,118.45
  5. Step 5: Solve for x
    x = 11,934,118.45/3,955.04
  6. Step 6: Final answer
    x = 3,017.45

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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.