Home / 4,612.61-6,920.09-1,325.65

Finding the Fourth Proportional to 4,612.61, 6,920.09 and 1,325.65

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Solution

The fourth proportional to 4,612.61, 6,920.09 and 1,325.65 is: 1,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,612.61 : 6,920.09 = 1,325.65 : x
  2. Step 2: Convert to fraction form
    4,612.61/6,920.09 = 1,325.65/x
  3. Step 3: Cross multiply
    4,612.61x = 6,920.09 × 1,325.65
  4. Step 4: Simplify right side
    4,612.61x = 9,173,617.31
  5. Step 5: Solve for x
    x = 9,173,617.31/4,612.61
  6. Step 6: Final answer
    x = 1,988.81

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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.