Home / 1,329.37-1,833.58-975.40

Finding the Fourth Proportional to 1,329.37, 1,833.58 and 975.40

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Solution

The fourth proportional to 1,329.37, 1,833.58 and 975.40 is: 1,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.37 : 1,833.58 = 975.40 : x
  2. Step 2: Convert to fraction form
    1,329.37/1,833.58 = 975.40/x
  3. Step 3: Cross multiply
    1,329.37x = 1,833.58 × 975.40
  4. Step 4: Simplify right side
    1,329.37x = 1,788,471.49
  5. Step 5: Solve for x
    x = 1,788,471.49/1,329.37
  6. Step 6: Final answer
    x = 1,345.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.