Home / 1,360.23-2,040.35-386.33

Finding the Fourth Proportional to 1,360.23, 2,040.35 and 386.33

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Solution

The fourth proportional to 1,360.23, 2,040.35 and 386.33 is: 579.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.23 : 2,040.35 = 386.33 : x
  2. Step 2: Convert to fraction form
    1,360.23/2,040.35 = 386.33/x
  3. Step 3: Cross multiply
    1,360.23x = 2,040.35 × 386.33
  4. Step 4: Simplify right side
    1,360.23x = 788,248.42
  5. Step 5: Solve for x
    x = 788,248.42/1,360.23
  6. Step 6: Final answer
    x = 579.50

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.