Home / 3,451.74-5,176.40-1,111.65

Finding the Fourth Proportional to 3,451.74, 5,176.40 and 1,111.65

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Solution

The fourth proportional to 3,451.74, 5,176.40 and 1,111.65 is: 1,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.74 : 5,176.40 = 1,111.65 : x
  2. Step 2: Convert to fraction form
    3,451.74/5,176.40 = 1,111.65/x
  3. Step 3: Cross multiply
    3,451.74x = 5,176.40 × 1,111.65
  4. Step 4: Simplify right side
    3,451.74x = 5,754,339.50
  5. Step 5: Solve for x
    x = 5,754,339.50/3,451.74
  6. Step 6: Final answer
    x = 1,667.08

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Double scale
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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.