Home / 1,453.77-2,180.85-723.27

Finding the Fourth Proportional to 1,453.77, 2,180.85 and 723.27

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Solution

The fourth proportional to 1,453.77, 2,180.85 and 723.27 is: 1,085.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.77 : 2,180.85 = 723.27 : x
  2. Step 2: Convert to fraction form
    1,453.77/2,180.85 = 723.27/x
  3. Step 3: Cross multiply
    1,453.77x = 2,180.85 × 723.27
  4. Step 4: Simplify right side
    1,453.77x = 1,577,343.38
  5. Step 5: Solve for x
    x = 1,577,343.38/1,453.77
  6. Step 6: Final answer
    x = 1,085.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.