Home / 3,118.65-4,679.58-1,271.13

Finding the Fourth Proportional to 3,118.65, 4,679.58 and 1,271.13

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Solution

The fourth proportional to 3,118.65, 4,679.58 and 1,271.13 is: 1,907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.65 : 4,679.58 = 1,271.13 : x
  2. Step 2: Convert to fraction form
    3,118.65/4,679.58 = 1,271.13/x
  3. Step 3: Cross multiply
    3,118.65x = 4,679.58 × 1,271.13
  4. Step 4: Simplify right side
    3,118.65x = 5,948,354.53
  5. Step 5: Solve for x
    x = 5,948,354.53/3,118.65
  6. Step 6: Final answer
    x = 1,907.35

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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.