Home / 2,921.32-4,030.27-1,800.31

Finding the Fourth Proportional to 2,921.32, 4,030.27 and 1,800.31

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Solution

The fourth proportional to 2,921.32, 4,030.27 and 1,800.31 is: 2,483.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.32 : 4,030.27 = 1,800.31 : x
  2. Step 2: Convert to fraction form
    2,921.32/4,030.27 = 1,800.31/x
  3. Step 3: Cross multiply
    2,921.32x = 4,030.27 × 1,800.31
  4. Step 4: Simplify right side
    2,921.32x = 7,255,713.89
  5. Step 5: Solve for x
    x = 7,255,713.89/2,921.32
  6. Step 6: Final answer
    x = 2,483.71

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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.