Home / 4,612.70-6,918.60-1,325.72

Finding the Fourth Proportional to 4,612.70, 6,918.60 and 1,325.72

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Solution

The fourth proportional to 4,612.70, 6,918.60 and 1,325.72 is: 1,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,612.70 : 6,918.60 = 1,325.72 : x
  2. Step 2: Convert to fraction form
    4,612.70/6,918.60 = 1,325.72/x
  3. Step 3: Cross multiply
    4,612.70x = 6,918.60 × 1,325.72
  4. Step 4: Simplify right side
    4,612.70x = 9,172,126.39
  5. Step 5: Solve for x
    x = 9,172,126.39/4,612.70
  6. Step 6: Final answer
    x = 1,988.45

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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.