Home / 1,315.51-1,973.23-482.60

Finding the Fourth Proportional to 1,315.51, 1,973.23 and 482.60

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Solution

The fourth proportional to 1,315.51, 1,973.23 and 482.60 is: 723.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315.51 : 1,973.23 = 482.60 : x
  2. Step 2: Convert to fraction form
    1,315.51/1,973.23 = 482.60/x
  3. Step 3: Cross multiply
    1,315.51x = 1,973.23 × 482.60
  4. Step 4: Simplify right side
    1,315.51x = 952,280.80
  5. Step 5: Solve for x
    x = 952,280.80/1,315.51
  6. Step 6: Final answer
    x = 723.89

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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.