Home / 2,931.12-4,397.69-1,834.18

Finding the Fourth Proportional to 2,931.12, 4,397.69 and 1,834.18

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Solution

The fourth proportional to 2,931.12, 4,397.69 and 1,834.18 is: 2,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.12 : 4,397.69 = 1,834.18 : x
  2. Step 2: Convert to fraction form
    2,931.12/4,397.69 = 1,834.18/x
  3. Step 3: Cross multiply
    2,931.12x = 4,397.69 × 1,834.18
  4. Step 4: Simplify right side
    2,931.12x = 8,066,148.64
  5. Step 5: Solve for x
    x = 8,066,148.64/2,931.12
  6. Step 6: Final answer
    x = 2,751.90

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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.