Home / 1,316.19-1,973.13-536.85

Finding the Fourth Proportional to 1,316.19, 1,973.13 and 536.85

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Solution

The fourth proportional to 1,316.19, 1,973.13 and 536.85 is: 804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.19 : 1,973.13 = 536.85 : x
  2. Step 2: Convert to fraction form
    1,316.19/1,973.13 = 536.85/x
  3. Step 3: Cross multiply
    1,316.19x = 1,973.13 × 536.85
  4. Step 4: Simplify right side
    1,316.19x = 1,059,270.39
  5. Step 5: Solve for x
    x = 1,059,270.39/1,316.19
  6. Step 6: Final answer
    x = 804.80

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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.