Home / 1,769.70-2,440.08-1,437.60

Finding the Fourth Proportional to 1,769.70, 2,440.08 and 1,437.60

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Solution

The fourth proportional to 1,769.70, 2,440.08 and 1,437.60 is: 1,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.70 : 2,440.08 = 1,437.60 : x
  2. Step 2: Convert to fraction form
    1,769.70/2,440.08 = 1,437.60/x
  3. Step 3: Cross multiply
    1,769.70x = 2,440.08 × 1,437.60
  4. Step 4: Simplify right side
    1,769.70x = 3,507,859.01
  5. Step 5: Solve for x
    x = 3,507,859.01/1,769.70
  6. Step 6: Final answer
    x = 1,982.18

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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.