Home / 5,417.04-8,121-2,642.28

Finding the Fourth Proportional to 5,417.04, 8,121 and 2,642.28

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Solution

The fourth proportional to 5,417.04, 8,121 and 2,642.28 is: 3,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.04 : 8,121 = 2,642.28 : x
  2. Step 2: Convert to fraction form
    5,417.04/8,121 = 2,642.28/x
  3. Step 3: Cross multiply
    5,417.04x = 8,121 × 2,642.28
  4. Step 4: Simplify right side
    5,417.04x = 21,457,955.88
  5. Step 5: Solve for x
    x = 21,457,955.88/5,417.04
  6. Step 6: Final answer
    x = 3,961.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.