Home / 3,118.80-4,672.16-2,457.18

Finding the Fourth Proportional to 3,118.80, 4,672.16 and 2,457.18

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Solution

The fourth proportional to 3,118.80, 4,672.16 and 2,457.18 is: 3,681.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.80 : 4,672.16 = 2,457.18 : x
  2. Step 2: Convert to fraction form
    3,118.80/4,672.16 = 2,457.18/x
  3. Step 3: Cross multiply
    3,118.80x = 4,672.16 × 2,457.18
  4. Step 4: Simplify right side
    3,118.80x = 11,480,338.11
  5. Step 5: Solve for x
    x = 11,480,338.11/3,118.80
  6. Step 6: Final answer
    x = 3,681.01

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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.