Home / 1,316.00-1,973.98-391.56

Finding the Fourth Proportional to 1,316.00, 1,973.98 and 391.56

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Solution

The fourth proportional to 1,316.00, 1,973.98 and 391.56 is: 587.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.00 : 1,973.98 = 391.56 : x
  2. Step 2: Convert to fraction form
    1,316.00/1,973.98 = 391.56/x
  3. Step 3: Cross multiply
    1,316.00x = 1,973.98 × 391.56
  4. Step 4: Simplify right side
    1,316.00x = 772,928.32
  5. Step 5: Solve for x
    x = 772,928.32/1,316.00
  6. Step 6: Final answer
    x = 587.33

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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.