Home / 1,193.56-1,631.80-1,148.20

Finding the Fourth Proportional to 1,193.56, 1,631.80 and 1,148.20

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Solution

The fourth proportional to 1,193.56, 1,631.80 and 1,148.20 is: 1,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.56 : 1,631.80 = 1,148.20 : x
  2. Step 2: Convert to fraction form
    1,193.56/1,631.80 = 1,148.20/x
  3. Step 3: Cross multiply
    1,193.56x = 1,631.80 × 1,148.20
  4. Step 4: Simplify right side
    1,193.56x = 1,873,632.76
  5. Step 5: Solve for x
    x = 1,873,632.76/1,193.56
  6. Step 6: Final answer
    x = 1,569.79

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Half scale
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Double scale
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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.