Home / 2,207.04-3,307.80-1,111.68

Finding the Fourth Proportional to 2,207.04, 3,307.80 and 1,111.68

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Solution

The fourth proportional to 2,207.04, 3,307.80 and 1,111.68 is: 1,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.04 : 3,307.80 = 1,111.68 : x
  2. Step 2: Convert to fraction form
    2,207.04/3,307.80 = 1,111.68/x
  3. Step 3: Cross multiply
    2,207.04x = 3,307.80 × 1,111.68
  4. Step 4: Simplify right side
    2,207.04x = 3,677,215.10
  5. Step 5: Solve for x
    x = 3,677,215.10/2,207.04
  6. Step 6: Final answer
    x = 1,666.13

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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.