Home / 4,118.70-6,178.47-1,521.03

Finding the Fourth Proportional to 4,118.70, 6,178.47 and 1,521.03

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Solution

The fourth proportional to 4,118.70, 6,178.47 and 1,521.03 is: 2,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.70 : 6,178.47 = 1,521.03 : x
  2. Step 2: Convert to fraction form
    4,118.70/6,178.47 = 1,521.03/x
  3. Step 3: Cross multiply
    4,118.70x = 6,178.47 × 1,521.03
  4. Step 4: Simplify right side
    4,118.70x = 9,397,638.22
  5. Step 5: Solve for x
    x = 9,397,638.22/4,118.70
  6. Step 6: Final answer
    x = 2,281.70

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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.