Home / 1,769.24-2,440.48-1,139.08

Finding the Fourth Proportional to 1,769.24, 2,440.48 and 1,139.08

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Solution

The fourth proportional to 1,769.24, 2,440.48 and 1,139.08 is: 1,571.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.24 : 2,440.48 = 1,139.08 : x
  2. Step 2: Convert to fraction form
    1,769.24/2,440.48 = 1,139.08/x
  3. Step 3: Cross multiply
    1,769.24x = 2,440.48 × 1,139.08
  4. Step 4: Simplify right side
    1,769.24x = 2,779,889.43
  5. Step 5: Solve for x
    x = 2,779,889.43/1,769.24
  6. Step 6: Final answer
    x = 1,571.23

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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.