Home / 1,315.00-1,973.06-493.16

Finding the Fourth Proportional to 1,315.00, 1,973.06 and 493.16

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Solution

The fourth proportional to 1,315.00, 1,973.06 and 493.16 is: 739.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315.00 : 1,973.06 = 493.16 : x
  2. Step 2: Convert to fraction form
    1,315.00/1,973.06 = 493.16/x
  3. Step 3: Cross multiply
    1,315.00x = 1,973.06 × 493.16
  4. Step 4: Simplify right side
    1,315.00x = 973,023.79
  5. Step 5: Solve for x
    x = 973,023.79/1,315.00
  6. Step 6: Final answer
    x = 739.94

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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.