Home / 5,637.12-8,457.84-2,126.88

Finding the Fourth Proportional to 5,637.12, 8,457.84 and 2,126.88

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Solution

The fourth proportional to 5,637.12, 8,457.84 and 2,126.88 is: 3,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.12 : 8,457.84 = 2,126.88 : x
  2. Step 2: Convert to fraction form
    5,637.12/8,457.84 = 2,126.88/x
  3. Step 3: Cross multiply
    5,637.12x = 8,457.84 × 2,126.88
  4. Step 4: Simplify right side
    5,637.12x = 17,988,810.74
  5. Step 5: Solve for x
    x = 17,988,810.74/5,637.12
  6. Step 6: Final answer
    x = 3,191.13

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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.