Home / 2,762.12-4,142.64-1,030.40

Finding the Fourth Proportional to 2,762.12, 4,142.64 and 1,030.40

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Solution

The fourth proportional to 2,762.12, 4,142.64 and 1,030.40 is: 1,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.12 : 4,142.64 = 1,030.40 : x
  2. Step 2: Convert to fraction form
    2,762.12/4,142.64 = 1,030.40/x
  3. Step 3: Cross multiply
    2,762.12x = 4,142.64 × 1,030.40
  4. Step 4: Simplify right side
    2,762.12x = 4,268,576.26
  5. Step 5: Solve for x
    x = 4,268,576.26/2,762.12
  6. Step 6: Final answer
    x = 1,545.40

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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.