Home / 2,920.50-4,030.74-1,801.08

Finding the Fourth Proportional to 2,920.50, 4,030.74 and 1,801.08

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Solution

The fourth proportional to 2,920.50, 4,030.74 and 1,801.08 is: 2,485.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.50 : 4,030.74 = 1,801.08 : x
  2. Step 2: Convert to fraction form
    2,920.50/4,030.74 = 1,801.08/x
  3. Step 3: Cross multiply
    2,920.50x = 4,030.74 × 1,801.08
  4. Step 4: Simplify right side
    2,920.50x = 7,259,685.20
  5. Step 5: Solve for x
    x = 7,259,685.20/2,920.50
  6. Step 6: Final answer
    x = 2,485.77

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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.