Home / 1,195.28-1,642.38-973.68

Finding the Fourth Proportional to 1,195.28, 1,642.38 and 973.68

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Solution

The fourth proportional to 1,195.28, 1,642.38 and 973.68 is: 1,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.28 : 1,642.38 = 973.68 : x
  2. Step 2: Convert to fraction form
    1,195.28/1,642.38 = 973.68/x
  3. Step 3: Cross multiply
    1,195.28x = 1,642.38 × 973.68
  4. Step 4: Simplify right side
    1,195.28x = 1,599,152.56
  5. Step 5: Solve for x
    x = 1,599,152.56/1,195.28
  6. Step 6: Final answer
    x = 1,337.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.