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Finding the Fourth Proportional to 3,590.79, 4,955.40 and 2,174.74

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Solution

The fourth proportional to 3,590.79, 4,955.40 and 2,174.74 is: 3,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.79 : 4,955.40 = 2,174.74 : x
  2. Step 2: Convert to fraction form
    3,590.79/4,955.40 = 2,174.74/x
  3. Step 3: Cross multiply
    3,590.79x = 4,955.40 × 2,174.74
  4. Step 4: Simplify right side
    3,590.79x = 10,776,706.60
  5. Step 5: Solve for x
    x = 10,776,706.60/3,590.79
  6. Step 6: Final answer
    x = 3,001.21

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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.