Home / 3,118.02-4,308.57-2,966.16

Finding the Fourth Proportional to 3,118.02, 4,308.57 and 2,966.16

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Solution

The fourth proportional to 3,118.02, 4,308.57 and 2,966.16 is: 4,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.02 : 4,308.57 = 2,966.16 : x
  2. Step 2: Convert to fraction form
    3,118.02/4,308.57 = 2,966.16/x
  3. Step 3: Cross multiply
    3,118.02x = 4,308.57 × 2,966.16
  4. Step 4: Simplify right side
    3,118.02x = 12,779,907.99
  5. Step 5: Solve for x
    x = 12,779,907.99/3,118.02
  6. Step 6: Final answer
    x = 4,098.73

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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.