Home / 2,913.48-4,021.92-1,866.96

Finding the Fourth Proportional to 2,913.48, 4,021.92 and 1,866.96

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Solution

The fourth proportional to 2,913.48, 4,021.92 and 1,866.96 is: 2,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.48 : 4,021.92 = 1,866.96 : x
  2. Step 2: Convert to fraction form
    2,913.48/4,021.92 = 1,866.96/x
  3. Step 3: Cross multiply
    2,913.48x = 4,021.92 × 1,866.96
  4. Step 4: Simplify right side
    2,913.48x = 7,508,763.76
  5. Step 5: Solve for x
    x = 7,508,763.76/2,913.48
  6. Step 6: Final answer
    x = 2,577.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.