Home / 1,357.49-2,036.23-383.60

Finding the Fourth Proportional to 1,357.49, 2,036.23 and 383.60

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Solution

The fourth proportional to 1,357.49, 2,036.23 and 383.60 is: 575.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.49 : 2,036.23 = 383.60 : x
  2. Step 2: Convert to fraction form
    1,357.49/2,036.23 = 383.60/x
  3. Step 3: Cross multiply
    1,357.49x = 2,036.23 × 383.60
  4. Step 4: Simplify right side
    1,357.49x = 781,101.96
  5. Step 5: Solve for x
    x = 781,101.96/1,357.49
  6. Step 6: Final answer
    x = 575.40

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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.