Home / 3,386.04-5,081.22-1,307.72

Finding the Fourth Proportional to 3,386.04, 5,081.22 and 1,307.72

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Solution

The fourth proportional to 3,386.04, 5,081.22 and 1,307.72 is: 1,962.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.04 : 5,081.22 = 1,307.72 : x
  2. Step 2: Convert to fraction form
    3,386.04/5,081.22 = 1,307.72/x
  3. Step 3: Cross multiply
    3,386.04x = 5,081.22 × 1,307.72
  4. Step 4: Simplify right side
    3,386.04x = 6,644,813.02
  5. Step 5: Solve for x
    x = 6,644,813.02/3,386.04
  6. Step 6: Final answer
    x = 1,962.41

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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.