Home / 5,130.12-7,693.29-1,842.42

Finding the Fourth Proportional to 5,130.12, 7,693.29 and 1,842.42

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Solution

The fourth proportional to 5,130.12, 7,693.29 and 1,842.42 is: 2,762.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.12 : 7,693.29 = 1,842.42 : x
  2. Step 2: Convert to fraction form
    5,130.12/7,693.29 = 1,842.42/x
  3. Step 3: Cross multiply
    5,130.12x = 7,693.29 × 1,842.42
  4. Step 4: Simplify right side
    5,130.12x = 14,174,271.36
  5. Step 5: Solve for x
    x = 14,174,271.36/5,130.12
  6. Step 6: Final answer
    x = 2,762.95

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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.