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Finding the Fourth Proportional to 2,148.55, 3,010.40 and 2,148.55

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Solution

The fourth proportional to 2,148.55, 3,010.40 and 2,148.55 is: 3,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.55 : 3,010.40 = 2,148.55 : x
  2. Step 2: Convert to fraction form
    2,148.55/3,010.40 = 2,148.55/x
  3. Step 3: Cross multiply
    2,148.55x = 3,010.40 × 2,148.55
  4. Step 4: Simplify right side
    2,148.55x = 6,467,994.92
  5. Step 5: Solve for x
    x = 6,467,994.92/2,148.55
  6. Step 6: Final answer
    x = 3,010.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.