Home / 1,307.11-1,960.77-370.06

Finding the Fourth Proportional to 1,307.11, 1,960.77 and 370.06

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Solution

The fourth proportional to 1,307.11, 1,960.77 and 370.06 is: 555.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.11 : 1,960.77 = 370.06 : x
  2. Step 2: Convert to fraction form
    1,307.11/1,960.77 = 370.06/x
  3. Step 3: Cross multiply
    1,307.11x = 1,960.77 × 370.06
  4. Step 4: Simplify right side
    1,307.11x = 725,595.36
  5. Step 5: Solve for x
    x = 725,595.36/1,307.11
  6. Step 6: Final answer
    x = 555.12

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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.