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Finding the Fourth Proportional to 2,590.93, 3,905.53 and 2,440.45

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Solution

The fourth proportional to 2,590.93, 3,905.53 and 2,440.45 is: 3,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.93 : 3,905.53 = 2,440.45 : x
  2. Step 2: Convert to fraction form
    2,590.93/3,905.53 = 2,440.45/x
  3. Step 3: Cross multiply
    2,590.93x = 3,905.53 × 2,440.45
  4. Step 4: Simplify right side
    2,590.93x = 9,531,250.69
  5. Step 5: Solve for x
    x = 9,531,250.69/2,590.93
  6. Step 6: Final answer
    x = 3,678.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.