Home / 2,931.04-4,395.52-1,081.65

Finding the Fourth Proportional to 2,931.04, 4,395.52 and 1,081.65

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Solution

The fourth proportional to 2,931.04, 4,395.52 and 1,081.65 is: 1,622.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.04 : 4,395.52 = 1,081.65 : x
  2. Step 2: Convert to fraction form
    2,931.04/4,395.52 = 1,081.65/x
  3. Step 3: Cross multiply
    2,931.04x = 4,395.52 × 1,081.65
  4. Step 4: Simplify right side
    2,931.04x = 4,754,425.96
  5. Step 5: Solve for x
    x = 4,754,425.96/2,931.04
  6. Step 6: Final answer
    x = 1,622.10

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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.