Home / 4,180.15-6,271.32-1,218.53

Finding the Fourth Proportional to 4,180.15, 6,271.32 and 1,218.53

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Solution

The fourth proportional to 4,180.15, 6,271.32 and 1,218.53 is: 1,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,180.15 : 6,271.32 = 1,218.53 : x
  2. Step 2: Convert to fraction form
    4,180.15/6,271.32 = 1,218.53/x
  3. Step 3: Cross multiply
    4,180.15x = 6,271.32 × 1,218.53
  4. Step 4: Simplify right side
    4,180.15x = 7,641,754.11
  5. Step 5: Solve for x
    x = 7,641,754.11/4,180.15
  6. Step 6: Final answer
    x = 1,828.11

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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.