Home / 1,988.38-2,744.04-1,490.14

Finding the Fourth Proportional to 1,988.38, 2,744.04 and 1,490.14

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Solution

The fourth proportional to 1,988.38, 2,744.04 and 1,490.14 is: 2,056.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.38 : 2,744.04 = 1,490.14 : x
  2. Step 2: Convert to fraction form
    1,988.38/2,744.04 = 1,490.14/x
  3. Step 3: Cross multiply
    1,988.38x = 2,744.04 × 1,490.14
  4. Step 4: Simplify right side
    1,988.38x = 4,089,003.77
  5. Step 5: Solve for x
    x = 4,089,003.77/1,988.38
  6. Step 6: Final answer
    x = 2,056.45

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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.