Home / 3,751.74-5,174.55-2,870.46

Finding the Fourth Proportional to 3,751.74, 5,174.55 and 2,870.46

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Solution

The fourth proportional to 3,751.74, 5,174.55 and 2,870.46 is: 3,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.74 : 5,174.55 = 2,870.46 : x
  2. Step 2: Convert to fraction form
    3,751.74/5,174.55 = 2,870.46/x
  3. Step 3: Cross multiply
    3,751.74x = 5,174.55 × 2,870.46
  4. Step 4: Simplify right side
    3,751.74x = 14,853,338.79
  5. Step 5: Solve for x
    x = 14,853,338.79/3,751.74
  6. Step 6: Final answer
    x = 3,959.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.