Home / 1,316.12-1,973.60-493.82

Finding the Fourth Proportional to 1,316.12, 1,973.60 and 493.82

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Solution

The fourth proportional to 1,316.12, 1,973.60 and 493.82 is: 740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.12 : 1,973.60 = 493.82 : x
  2. Step 2: Convert to fraction form
    1,316.12/1,973.60 = 493.82/x
  3. Step 3: Cross multiply
    1,316.12x = 1,973.60 × 493.82
  4. Step 4: Simplify right side
    1,316.12x = 974,590.81
  5. Step 5: Solve for x
    x = 974,590.81/1,316.12
  6. Step 6: Final answer
    x = 740.51

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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.